{"id":248,"date":"2021-07-23T11:28:21","date_gmt":"2021-07-23T05:58:21","guid":{"rendered":"http:\/\/mcq-questions.com\/?p=248"},"modified":"2022-03-02T10:23:49","modified_gmt":"2022-03-02T04:53:49","slug":"ncert-solutions-for-class-10-science-chapter-5-hindi","status":"publish","type":"post","link":"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-chapter-5-hindi\/","title":{"rendered":"NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium)"},"content":{"rendered":"<h2>NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium)<\/h2>\n<p>These Solutions are part of <a href=\"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-hindi\/\">NCERT Solutions for Class 10 Science in Hindi Medium<\/a>. Here we have given NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements.<\/p>\n<p><strong>Chapter 5. \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0906\u0935\u0930\u094d\u0924 \u0935\u0930\u094d\u0917\u0940\u0915\u0930\u0923<\/strong><\/p>\n<div>\n<p style=\"text-align: center;\"><span style=\"color: #0000ff;\"><strong>\u0905\u0927\u094d\u092f\u093e\u092f-\u0938\u092e\u0940\u0915\u094d\u0937\u093e\u00a0<\/strong><\/span><\/p>\n<ul>\n<li>\u0938\u0928\u094d 1800 \u0924\u0915 \u0915\u0947\u0935\u0932 30 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u093e \u092a\u0924\u093e \u091a\u0932\u093e \u0925\u093e\u0964 \u0907\u0928 \u0938\u092d\u0940 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0940 \u0938\u0902\u092d\u0935\u0924\u0903 \u092d\u093f\u0928\u094d\u0928-\u092d\u093f\u0928\u094d\u0928 \u0935\u093f\u0936\u0947\u0937\u0924\u093e\u090f\u0901 \u0925\u0940\u0902\u0964<\/li>\n<li>\u091c\u0948\u0938\u0947-\u091c\u0948\u0938\u0947 \u0935\u093f\u092d\u093f\u0928\u094d\u0928 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0940 \u0916\u094b\u091c \u0939\u094b \u0930\u0939\u0940 \u0925\u0940, \u0935\u0948\u091c\u094d\u091e\u093e\u0928\u093f\u0915 \u0907\u0928 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0917\u0941\u0923\u0927\u0930\u094d\u092e\u094b\u0902 \u0915\u0947\u00a0\u092c\u093e\u0930\u0947 \u092e\u0947\u0902 \u0905\u0927\u093f\u0915 \u0938\u0947 \u0905\u0927\u093f\u0915 \u091c\u093e\u0928\u0915\u093e\u0930\u0940 \u090f\u0915\u0924\u094d\u0930\u00a0\u0915\u0930\u0928\u0947 \u0932\u0917\u0947\u0964<\/li>\n<li>\u0938\u092c\u0938\u0947 \u092a\u0939\u0932\u0947, \u091c\u094d\u091e\u093e\u0924 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u094b \u0927\u093e\u0924\u0941 \u090f\u0935\u0902 \u0905\u0927\u093e\u0924\u0941 \u092e\u0947\u0902 \u0935\u0930\u094d\u0917\u0940\u0915\u0943\u0924 \u0915\u093f\u092f\u093e \u0917\u092f\u093e\u0964 \u091c\u0948\u0938\u0947-\u091c\u0948\u0938\u0947 \u0924\u0924\u094d\u0935\u094b\u0902 \u090f\u0935\u0902 \u0909\u0928\u0915\u0947 \u0917\u0941\u0923\u0927\u0930\u094d\u092e\u094b\u0902 \u0915\u0947 \u092c\u093e\u0930\u0947 \u092e\u0947\u0902 \u0939\u092e\u093e\u0930\u093e \u091c\u094d\u091e\u093e\u0928 \u092c\u0922\u093c\u0924\u093e \u0917\u092f\u093e, \u0935\u0948\u0938\u0947-\u0935\u0948\u0938\u0947 \u0909\u0928\u094d\u0939\u0947\u0902 \u0935\u0930\u094d\u0917\u0940\u0915\u0943\u0924 \u0915\u0930\u0928\u0947 \u0915\u0947\u00a0\u092a\u094d\u0930\u092f\u093e\u0938 \u0915\u093f\u090f \u0917\u090f\u0964<\/li>\n<li>\u0938\u0928\u094d 1817 \u092e\u0947\u0902 \u091c\u0930\u094d\u092e\u0928 \u0930\u0938\u093e\u092f\u0928\u091c\u094d\u091e, \u0935\u0941\u0932\u094d\u092b\u0917\u093e\u0902\u0917 \u0921\u0949\u092c\u0947\u0930\u093e\u0907\u0928\u0930 \u0928\u0947 \u0938\u092e\u093e\u0928 \u0917\u0941\u0923\u0927\u0930\u094d\u092e\u094b\u0902 \u0935\u093e\u0932\u0947 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u094b \u0938\u092e\u0942\u0939\u094b\u0902 \u092e\u0947\u0902 \u0935\u094d\u092f\u0935\u0938\u094d\u0925\u093f\u0924 \u0915\u0930\u0928\u0947 \u0915\u093e \u092a\u094d\u0930\u092f\u093e\u0938 \u0915\u093f\u092f\u093e\u0964 \u0909\u0928\u094d\u0939\u094b\u0902\u0928\u0947 \u0924\u0940\u0928-\u0924\u0940\u0928 \u0924\u0924\u094d\u0935 \u0935\u093e\u0932\u0947 \u0915\u0941\u091b \u0938\u092e\u0942\u0939\u094b\u0902 \u0915\u094b \u091a\u0941\u0928\u093e \u090f\u0935\u0902 \u0909\u0928 \u0938\u092e\u0942\u0939\u094b\u0902 \u0915\u094b \u0924\u094d\u0930\u093f\u0915 \u0915\u0939\u093e |<\/li>\n<li>\u0921\u0949\u092c\u0947\u0930\u093e\u0907\u0928\u0930 \u0928\u0947 \u092c\u0924\u093e\u092f\u093e \u0915\u093f \u0924\u094d\u0930\u093f\u0915 \u0915\u0947 \u0924\u0940\u0928\u094b\u0902 \u0924\u0924\u094d\u0935\u094b\u0902\u00a0\u0915\u094b \u0909\u0928\u0915\u0947 \u092a\u0930\u092e\u093e\u0923\u0941 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u0947 \u0906\u0930\u094b\u0939\u0940 \u0915\u094d\u0930\u092e \u092e\u0947\u0902 \u0930\u0916\u0928\u0947 \u092a\u0930 \u092c\u0940\u091a \u0935\u093e\u0932\u0947 \u0924\u0924\u094d\u0935 \u0915\u093e \u092a\u0930\u092e\u093e\u0923\u0941 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928, \u0905\u0928\u094d\u092f \u0926\u094b \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u092a\u0930\u092e\u093e\u0923\u0941 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u093e \u0932\u0917\u092d\u0917 \u0914\u0938\u0924 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0909\u0926\u093e\u0939\u0930\u0923 \u0915\u0947 \u0932\u093f\u090f \u0932\u093f\u0925\u093f\u092f\u092e (Li) \u0938\u094b\u0921\u093f\u092f\u092e (Na) \u090f\u0935\u0902 \u092a\u094b\u091f\u0948\u0936\u093f\u092f\u092e (K) \u0939\u0948 |<\/li>\n<li>\u0921\u0949\u092c\u0947\u0930\u093e\u0907\u0928\u0930 \u0915\u0940 \u0924\u094d\u0930\u093f\u0915 \u092e\u0947\u0902 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0935\u0930\u094d\u0917\u0940\u0915\u0930\u0923 \u0915\u0940 \u092f\u0939 \u092a\u0926\u094d\u0927\u0924\u093f \u0938\u092b\u0932 \u0928\u0939\u0940\u0902 \u0930\u0939\u0940 \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u0909\u0938 \u0938\u092e\u092f \u0924\u0915 \u091c\u094d\u091e\u093e\u0924 \u0924\u0924\u094d\u0935\u094b\u0902 \u092e\u0947\u0902 \u0915\u0947\u0935\u0932 \u0924\u0940\u0928 \u0924\u094d\u0930\u093f\u0915 \u0939\u0940 \u091c\u094d\u091e\u093e\u0924 \u0915\u0930 \u0938\u0915\u0947 \u0925\u0947\u0964<\/li>\n<li>\u0921\u0949\u092c\u0947\u0930\u093e\u0907\u0928\u0930 \u0928\u0947\u00a0\u0939\u0940 \u0938\u092c\u0938\u0947 \u092a\u0939\u0932\u0947 \u092a\u094d\u0932\u0948\u091f\u093f\u0928\u092e \u0915\u094b \u0909\u0924\u094d\u092a\u094d\u0930\u0947\u0930\u0915 \u0915\u0947 \u0930\u0942\u092a \u092e\u0947\u0902 \u092a\u0939\u091a\u093e\u0928\u093e \u0924\u0925\u093e \u0938\u092e\u093e\u0928 \u0924\u094d\u0930\u093f\u0915 \u0915\u0940 \u0916\u094b\u091c \u0915\u0940 \u091c\u093f\u0938\u0938\u0947 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0940 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u0915\u093e \u0935\u093f\u0915\u093e\u0938 \u0939\u0941\u0906\u0964<\/li>\n<li>\u0938\u0928\u094d 1866 \u092e\u0947\u0902 \u0905\u0902\u0917\u094d\u0930\u0947\u091c\u093c \u0935\u0948\u091c\u094d\u091e\u093e\u0928\u093f\u0915 \u091c\u0949\u0928 \u0928\u094d\u092f\u0942\u0932\u0948\u0902\u0921\u094d\u0938 \u0928\u0947 \u091c\u094d\u091e\u093e\u0924 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u094b \u092a\u0930\u092e\u093e\u0923\u0941 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u0947 \u0906\u0930\u094b\u0939\u0940 \u0915\u094d\u0930\u092e \u092e\u0947\u0902 \u0935\u094d\u092f\u0935\u0938\u094d\u0925\u093f\u0924 \u0915\u093f\u092f\u093e\u0964 \u0909\u0928\u094d\u0939\u094b\u0902\u0928\u0947 \u0938\u092c\u0938\u0947 \u0915\u092e \u092a\u0930\u092e\u093e\u0923\u0941 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0935\u093e\u0932\u0947 \u0924\u0924\u094d\u0935 \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u091c\u0928 \u0938\u0947 \u0906\u0930\u0902\u092d \u0915\u093f\u092f\u093e \u0924\u0925\u093e 56\u0935\u0947\u0902 \u0924\u0924\u094d\u0935 \u0925\u094b\u0930\u093f\u092f\u092e \u092a\u0930 \u0907\u0938\u0947 \u0938\u092e\u093e\u092a\u094d\u0924 \u0915\u093f\u092f\u093e\u0964<\/li>\n<li>\u0928\u094d\u092f\u0942\u0932\u0948\u0902\u0921\u094d\u0938 \u0915\u093e \u0905\u0937\u094d\u091f\u0915 \u0928\u093f\u092f\u092e: &#8220;\u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0906\u0920\u0935\u0947\u0902 \u0924\u0924\u094d\u0935 \u0915\u093e \u0917\u0941\u0923\u0927\u0930\u094d\u092e \u092a\u0939\u0932\u0947 \u0924\u0924\u094d\u0935 \u0915\u0947 \u0917\u0941\u0923\u0927\u0930\u094d\u092e \u0915\u0947 \u0938\u092e\u093e\u0928 \u0939\u0948\u0902 |&#8221;<\/li>\n<li>\u0928\u094d\u092f\u0942\u0932\u0948\u0902\u0921\u094d\u0938 \u0915\u0947 \u0905\u0937\u094d\u091f\u0915 \u092e\u0947\u0902 \u0932\u0940\u0925\u093f\u092f\u092e \u090f\u0935\u0902 \u0938\u094b\u0921\u093f\u092f\u092e \u0915\u0947 \u0917\u0941\u0923\u0927\u0930\u094d\u092e \u0938\u092e\u093e\u0928 \u0925\u0947\u0964 \u0938\u094b\u0921\u093f\u092f\u092e, \u0932\u0940\u0925\u093f\u092f\u092e \u0915\u0947 \u092c\u093e\u0926 \u0906\u0920\u0935\u093e\u0901 \u0924\u0924\u094d\u0935 \u0939\u0948\u0964 \u0907\u0938\u0940 \u0924\u0930\u0939 \u092c\u0947\u0930\u093f\u0932\u093f\u092f\u092e \u090f\u0935\u0902 \u092e\u0948\u0917\u094d\u0928\u0940\u0936\u093f\u092f\u092e \u092e\u0947\u0902 \u0905\u0927\u093f\u0915 \u0938\u092e\u093e\u0928\u0924\u093e \u0939\u0948\u0964<\/li>\n<li>\u0910\u0938\u093e \u0926\u0947\u0916\u093e \u0917\u092f\u093e \u0915\u093f \u0905\u0937\u094d\u091f\u0915 \u0915\u093e \u0938\u093f\u0926\u094d\u0927\u093e\u0902\u0924 \u0915\u0947\u0935\u0932\u00a0\u0915\u0948\u0932\u094d\u0938\u093f\u092f\u092e \u0924\u0915 \u0939\u0940 \u0932\u093e\u0917\u0942 \u0939\u094b\u0924\u093e \u0925\u093e, \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u0915\u0948\u0932\u094d\u0938\u093f\u092f\u092e \u0915\u0947 \u092c\u093e\u0926 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0906\u0920\u0935\u0947\u0902 \u0924\u0924\u094d\u0935 \u0915\u093e \u0917\u0941\u0923\u0927\u0930\u094d\u092e \u092a\u0939\u0932\u0947 \u0924\u0924\u094d\u0935 \u0938\u0947 \u0928\u0939\u0940\u0902 \u092e\u093f\u0932\u0924\u093e\u0964<\/li>\n<li>\u0928\u094d\u092f\u0942\u0932\u0948\u0902\u0921\u094d\u0938 \u0928\u0947 \u0915\u0932\u094d\u092a\u0928\u093e \u0915\u0940 \u0915\u093f \u092a\u094d\u0930\u0915\u0943\u0924\u093f \u092e\u0947\u0902 \u0915\u0947\u0935\u0932 56 \u0924\u0924\u094d\u0935 \u0935\u093f\u0926\u094d\u092f\u092e\u093e\u0928 \u0939\u0948\u0902 \u0924\u0925\u093e \u092d\u0935\u093f\u0937\u094d\u092f \u092e\u0947\u0902 \u0915\u094b\u0908 \u0905\u0928\u094d\u092f \u0924\u0924\u094d\u0935 \u0928\u0939\u0940\u0902 \u092e\u093f\u0932\u0947\u0917\u093e\u0964 \u0932\u0947\u0915\u093f\u0928, \u092c\u093e\u0926 \u092e\u0947\u0902 \u0915\u0908 \u0928\u090f \u0924\u0924\u094d\u0935 \u092a\u093e\u090f \u0917\u090f \u091c\u093f\u0928\u0915\u0947\u00a0\u0917\u0941\u0923\u0927\u0930\u094d\u092e, \u0905\u0937\u094d\u091f\u0915 \u0938\u093f\u0926\u094d\u0927\u093e\u0902\u0924 \u0938\u0947 \u092e\u0947\u0932 \u0928\u0939\u0940\u0902 \u0916\u093e\u0924\u0947 \u0925\u0947\u0964<\/li>\n<li>\u0905\u092a\u0928\u0940 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u0907\u0928 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u094b \u0938\u092e\u0902\u091c\u093f\u0924 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0928\u094d\u092f\u0942\u0932\u0948\u0902\u0921\u094d\u0938 \u0928\u0947 \u0926\u094b \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u094b \u090f\u0915 \u0938\u093e\u0925 \u0930\u0916 \u0926\u093f\u092f\u093e \u0914\u0930 \u0915\u0941\u091b \u0905\u0938\u092e\u093e\u0928 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u094b \u090f\u0915 \u0938\u094d\u0925\u093e\u0928 \u092e\u0947\u0902 \u0930\u0916 \u0926\u093f\u092f\u093e\u0964<\/li>\n<li>\u0907\u0938 \u092a\u094d\u0930\u0915\u093e\u0930, \u0928\u094d\u092f\u0942\u0932\u0948\u0902\u0921\u094d\u0938 \u0905\u0937\u094d\u091f\u0915 \u0938\u093f\u0926\u094d\u0927\u093e\u0902\u0924 \u0915\u0947\u0935\u0932 \u0939\u0932\u094d\u0915\u0947\u00a0\u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u0939\u0940 \u0920\u0940\u0915 \u0938\u0947 \u0932\u093e\u0917\u0942 \u0939\u094b \u092a\u093e\u092f\u093e\u0964<\/li>\n<li>\u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0935\u0930\u094d\u0917\u0940\u0915\u0930\u0923 \u0915\u093e \u092e\u0941\u0916\u094d\u092f \u0936\u094d\u0930\u0947\u092f \u0930\u0942\u0938\u0940 \u0930\u0938\u093e\u092f\u0928\u091c\u094d\u091e \u0921\u092e\u093f\u0924\u094d\u0930\u093e\u0940 \u0907\u0935\u093e\u0928\u094b\u0935\u093f\u091a \u092e\u0947\u0928\u094d\u0921\u0947\u0932\u0940\u092b \u0915\u094b \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0940 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u0915\u0947 \u092a\u094d\u0930\u093e\u0930\u0902\u092d\u093f\u0915 \u0935\u093f\u0915\u093e\u0938 \u092e\u0947\u0902 \u0909\u0928\u0915\u093e \u092a\u094d\u0930\u092e\u0941\u0916 \u092f\u094b\u0917\u0926\u093e\u0928 \u0930\u0939\u093e\u0964 \u0909\u0928\u094d\u0939\u094b\u0902\u0928\u0947 \u0905\u092a\u0928\u0940 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u094b \u0909\u0928\u0915\u0947 \u092e\u0942\u0932 \u0917\u0941\u0923\u0927\u0930\u094d\u092e, \u092a\u0930\u092e\u093e\u0923\u0941 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0924\u0925\u093e \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0917\u0941\u0923\u0927\u0930\u094d\u092e\u094b\u0902 \u092e\u0947\u0902 \u0938\u092e\u093e\u0928\u0924\u093e \u0915\u0947 \u0906\u0927\u093e\u0930 \u092a\u0930 \u0935\u094d\u092f\u0935\u0938\u094d\u0925\u093f\u0924 \u0915\u093f\u092f\u093e\u0964<\/li>\n<li>\u091c\u092c \u092e\u0947\u0928\u094d\u0921\u0947\u0932\u0940\u092b \u0928\u0947 \u0905\u092a\u0928\u093e \u0915\u093e\u0930\u094d\u092f \u0906\u0930\u0902\u092d \u0915\u093f\u092f\u093e \u0924\u092c \u0924\u0915 63 \u0924\u0924\u094d\u0935 \u091c\u094d\u091e\u093e\u0924 \u0925\u0947\u0964 \u0909\u0928\u094d\u0939\u094b\u0902\u0928\u0947 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u092a\u0930\u092e\u093e\u0923\u0941 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u090f\u0935\u0902 \u0909\u0928\u0915\u0947 \u092d\u094c\u0924\u093f\u0915 \u0924\u0925\u093e \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0917\u0941\u0923\u0927\u0930\u094d\u092e\u094b\u0902 \u0915\u0947 \u092c\u0940\u091a \u0938\u0902\u092c\u0902\u0927\u094b\u0902 \u0915\u093e \u0905\u0927\u094d\u092f\u092f\u0928 \u0915\u093f\u092f\u093e |<\/li>\n<li>\u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0917\u0941\u0923\u0927\u0930\u094d\u092e\u094b\u0902 \u0915\u0947 \u0905\u0902\u0924\u0930\u094d\u0917\u0924 \u092e\u0947\u0928\u094d\u0921\u0947\u0932\u0940\u092b \u0928\u0947 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0911\u0915\u094d\u0938\u0940\u091c\u0928 \u090f\u0935\u0902 \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u091c\u0928 \u0915\u0947 \u0938\u093e\u0925 \u092c\u0928\u0928\u0947 \u0935\u093e\u0932\u0947 \u092f\u094c\u0917\u093f\u0915\u094b\u0902 \u092a\u0930 \u0905\u092a\u0928\u093e \u0927\u094d\u092f\u093e\u0928 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 \u0915\u093f\u092f\u093e\u0964 \u0909\u0928\u094d\u0939\u094b\u0902\u0928\u0947 \u0911\u0915\u094d\u0938\u0940\u091c\u0928 \u090f\u0935\u0902 \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u091c\u0928 \u0915\u093e \u0907\u0938\u0932\u093f\u090f \u091a\u0941\u0928\u093e\u0935 \u0915\u093f\u092f\u093e \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u092f\u0947 \u0905\u0924\u094d\u092f\u0902\u0924 \u0938\u0915\u094d\u0930\u093f\u092f \u0939\u0948\u0902 \u0924\u0925\u093e \u0905\u0927\u093f\u0915\u093e\u0902\u0936 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0938\u093e\u0925 \u092f\u094c\u0917\u093f\u0915 \u092c\u0928\u093e\u0924\u0947 \u0939\u0948\u0902\u0964 \u0924\u0924\u094d\u0935 \u0938\u0947 \u092c\u0928\u0928\u0947 \u0935\u093e\u0932\u0947 \u0939\u093e\u0907\u0921\u094d\u0930\u093e\u0907\u0921 \u090f\u0935\u0902 \u0911\u0915\u094d\u0938\u093e\u0907\u0921 \u0915\u0947 \u0938\u0942\u0924\u094d\u0930\u00a0\u0915\u094b \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0935\u0930\u094d\u0917\u0940\u0915\u0930\u0923 \u0915\u0947 \u0932\u093f\u090f \u092e\u0942\u0932\u092d\u0942\u0924 \u0917\u0941\u0923\u0927\u0930\u094d\u092e \u092e\u093e\u0928\u093e \u0917\u092f\u093e\u0964<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><span style=\"color: #0000ff;\"><strong>\u092a\u093e\u0920\u0917\u0924-\u092a\u094d\u0930\u0936\u094d\u0928:<\/strong><\/span><\/p>\n<p><strong>\u092a\u0947\u091c \u2013 91<\/strong><\/p>\n<p><strong>1. \u0915\u094d\u092f\u093e \u0921\u0949\u092c\u0947\u0930\u093e\u0907\u0928\u0930 \u0915\u0947\u00a0\u0924\u094d\u0930\u093f\u0915, \u0928\u094d\u092f\u0942\u0932\u0948\u0902\u0921\u094d\u0938 \u0915\u0947\u00a0\u0905\u0937\u094d\u091f\u0915 \u0915\u0947\u00a0\u0938\u094d\u0924\u0902\u092d \u092e\u0947\u0902 \u092d\u0940 \u092a\u093e\u090f \u091c\u093e\u0924\u0947 \u0939\u0948\u0902? \u0924\u0941\u0932\u0928\u093e \u0915\u0930\u0915\u0947\u00a0\u092a\u0924\u093e \u0915\u0940\u091c\u093f\u090f\u0964<br \/>\n<\/strong><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong>\u00a0\u0939\u093e\u0901 , \u0924\u094d\u0930\u093f\u0915\u00a0\u00a0\u0928\u094d\u092f\u0942\u0932\u0948\u0902\u0921\u094d\u0938 \u0915\u0947\u00a0\u0905\u0937\u094d\u091f\u0915 \u0915\u0947\u00a0\u0938\u094d\u0924\u0902\u092d \u092e\u0947\u0902 \u092d\u0940 \u092e\u093f\u0932\u0924\u0947 \u0939\u0948 | \u0909\u0926\u0939\u093e\u0930\u0923 :- Li , Na \u0935 K |<\/p>\n<p><strong>2. \u0921\u0949\u092c\u0947\u0930\u093e\u0907\u0928\u0930 \u0915\u0947\u00a0\u0935\u0930\u094d\u0917\u0940\u0915\u0930\u0923 \u0915\u0940 \u0915\u094d\u092f\u093e \u0938\u0940\u092e\u093e\u090f\u0901 \u0939\u0948\u0902?<br \/>\n<\/strong><strong>\u0909\u0924\u094d\u0924\u0930 :\u00a0<\/strong>\u00a0\u0921\u0949\u092c\u0947\u0930\u093e\u0907\u0928\u0930 \u0915\u0947\u0935\u0932 \u0924\u0940\u0928 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0924\u094d\u0930\u093f\u0915 \u0915\u094b \u0909\u0938 \u0938\u092e\u092f \u092a\u0939\u091a\u093e\u0928 \u0938\u0915\u0947 \u090f\u0935\u0902 \u0938\u092d\u0940 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u093e \u0935\u0930\u094d\u0917\u094b\u0902\u0915\u0930\u0923 \u0909\u0928\u0915\u0947 \u0924\u094d\u0930\u093f\u0915 \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 \u0928\u0939\u0940\u0902 \u0939\u094b \u0938\u0915\u093e |<\/p>\n<p><strong>3. \u0928\u094d\u092f\u0942\u0932\u0948\u0902\u0921\u094d\u0938 \u0915\u0947\u00a0\u0905\u0937\u094d\u091f\u0915 \u0938\u093f\u0926\u094d\u0927\u093e\u0924 \u0915\u0940 \u0915\u094d\u092f\u093e \u0938\u0940\u092e\u093e\u090f\u0901 \u0939\u0948\u0902?<br \/>\n<\/strong><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong>\u00a0\u00a0\u0928\u094d\u092f\u0942\u0932\u0948\u0902\u0921\u094d\u0938\u00a0\u0915\u093e \u0905\u0937\u094d\u091f\u0915\u00a0\u00a0\u0938\u093f\u0926\u094d\u0927\u093e\u0924\u00a0\u0915\u0948\u0932\u094d\u0938\u093f\u092f\u092e \u0924\u0915 \u0915\u0947\u0935 \u092a\u0930\u092e\u093e\u0923\u0941 \u092d\u0930 \u0935\u093e\u0932\u0947 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u093e \u0935\u0930\u094d\u0917\u094b\u0902\u0915\u0930\u0923 \u0915\u0930 \u092a\u093e\u092f\u093e |<\/p>\n<p><strong>\u092a\u0947\u091c \u2013 94<\/strong><\/p>\n<p><strong>1. \u092e\u0947\u0928\u094d\u0921\u0947\u0932\u0940\u092b \u0915\u0940 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0915\u0930 \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u0924\u0924\u094d\u0935\u094b\u0902 \u0935\u0947\u092b \u0911\u0915\u094d\u0938\u093e\u0907\u0921 \u0915\u0947 \u0938\u0942\u0924\u094d\u0930\u00a0\u0915\u093e \u0905\u0928\u0941\u092e\u093e\u0928\u00a0\u0915\u0940\u091c\u093f\u090f: K,C,Al,Si,Ba |<br \/>\n<\/strong><strong>\u0909\u0924\u094d\u0924\u0930 :\u00a0<\/strong>K &#8211; K<sub>2<\/sub>O , O &#8211; O<sub>2<\/sub>\u00a0, Al &#8211; Al<sub>2<\/sub>O<sub>2<\/sub>\u00a0,Si &#8211; SiO<sub>2<\/sub>\u00a0, Ba &#8211; BaO |<\/p>\n<p><strong>2. \u0917\u0948\u0932\u093f\u092f\u092e \u0915\u0947\u00a0\u0905\u0924\u093f\u0930\u093f\u0915\u094d\u0924, \u0905\u092c \u0924\u0915 \u0915\u094c\u0928-\u0915\u094c\u0928 \u0938\u0947 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u093e \u092a\u0924\u093e \u091a\u0932\u093e \u0939\u0948 \u091c\u093f\u0938\u0915\u0947\u00a0\u0932\u093f\u090f \u092e\u0947\u0928\u094d\u0921\u0947\u0932\u0940\u092b \u0928\u0947 \u0905\u092a\u0928\u0940\u00a0\u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u0916\u093e\u0932\u0940 \u0938\u094d\u0925\u093e\u0928 \u091b\u094b\u0921\u093c \u0926\u093f\u092f\u093e \u0925\u093e? \u0926\u094b \u0909\u0926\u093e\u0939\u0930\u0923 \u0926\u0940\u091c\u093f\u090f\u0964<br \/>\n<\/strong><strong>\u0909\u0924\u094d\u0924\u0930 :\u00a0<\/strong>\u0938\u094d\u0915\u0948\u0902\u0921\u093f\u092f\u092e \u0935 \u091c\u0930\u094d\u092e\u0947\u0928\u093f\u092f\u092e |<\/p>\n<p><strong>3. \u092e\u0947\u0928\u094d\u0921\u0947\u0932\u0940\u092b \u0928\u0947 \u0905\u092a\u0928\u0940 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u0924\u0948\u092f\u093e\u0930 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0915\u094c\u0928 \u0938\u093e \u092e\u093e\u092a\u0926\u0902\u0921 \u0905\u092a\u0928\u093e\u092f\u093e?<br \/>\n<\/strong><strong>\u0909\u0924\u094d\u0924\u0930 :\u00a0<\/strong>\u00a0\u092e\u0947\u0928\u094d\u0921\u0947\u0932\u0940\u092b \u0928\u0947 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u094b \u0909\u0928\u0915\u0947 \u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 \u0905\u0932\u0917 \u0915\u093f\u092f\u093e | \u0909\u0928\u0939\u094b\u0902\u0928\u0947 \u090f\u0915 \u0938\u092e\u093e\u0928 \u0917\u0941\u0923\u094b\u0902 \u0935\u093e\u0932\u0947 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u094b \u090f\u0915 \u0938\u092e\u0942\u0939 \u092e\u0947\u0902 \u0930\u0916\u0928\u0947 \u0915\u093e \u092a\u094d\u0930\u092f\u093e\u0938 \u0915\u093f\u092f\u093e |<\/p>\n<p><strong>4. \u0906\u092a\u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 \u0909\u0924\u094d\u0915\u0943\u0937\u094d\u091f \u0917\u0948\u0938\u094b\u0902 \u0915\u094b \u0905\u0932\u0917 \u0938\u092e\u0942\u0939 \u092e\u0947\u0902 \u0915\u094d\u092f\u094b\u0902 \u0930\u0916\u093e \u0917\u092f\u093e?<br \/>\n\u0909\u0924\u094d\u0924\u0930 :<\/strong>\u00a0\u0909\u0924\u094d\u0915\u0943\u0937\u094d\u091f \u0917\u0948\u0938\u094b\u0902 \u0905\u0915\u094d\u0930\u093f\u092f\u093e\u0936\u0940\u0932 \u0939\u094b\u0924\u0940 \u0939\u0948 \u0905\u0924: \u0905\u0932\u0917 \u0935\u0930\u094d\u0917 \u092e\u0947\u0902 \u0930\u0916\u093e \u0917\u092f\u093e |<\/p>\n<p><strong>\u092a\u0947\u091c \u2013 100<\/strong><\/p>\n<p><strong>1. \u0906\u0927\u0941\u0928\u093f\u0915 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u0926\u094d\u0935\u093e\u0930\u093e \u0915\u093f\u0938 \u092a\u094d\u0930\u0915\u093e\u0930 \u0938\u0947 \u092e\u0947\u0928\u094d\u0921\u0947\u0932\u0940\u092b \u0915\u0940 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u0915\u0940 \u0935\u093f\u0935\u093f\u0927 \u0935\u093f\u0938\u0902\u0917\u0924\u093f\u092f\u094b\u0902\u00a0\u0915\u094b \u0926\u0942\u0930 \u0915\u093f\u092f\u093e \u0917\u092f\u093e?<br \/>\n<\/strong><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong><\/p>\n<ol>\n<li>\u0906\u0927\u0941\u0928\u093f\u0915 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u094b \u0909\u0928\u0915\u0947 \u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u094d\u0930\u092e\u093e\u0902\u0915\u094b\u0902 \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 \u0905\u0932\u0917 \u0915\u093f\u092f\u093e \u0917\u092f\u093e | \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u091c\u0928 \u0915\u094b \u092a\u094d\u0930\u0925\u092e \u0938\u092e\u0942\u0939 \u092e\u0947\u0902 \u0938\u094d\u0925\u093e\u0928 \u0926\u093f\u092f\u093e \u0917\u092f\u093e |<\/li>\n<li>\u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0940 \u0938\u093f\u0925\u0924\u093f \u0938\u0947 \u0909\u0928\u0915\u0940 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u00a0\u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e\u0936\u0940\u0932\u0924\u093e \u0915\u093e \u092a\u0924\u093e \u091a\u0932\u0924\u093e \u0939\u0948 |<\/li>\n<li>\u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u094b \u0909\u0928\u0915\u0947 \u092d\u093e\u0930 \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 \u092d\u093e\u0930\u0940 \u0935 \u0939\u0932\u094d\u0915\u0947 \u0905\u0932\u0917-\u0905\u0932\u0917 \u0915\u094d\u0930\u092e \u092e\u0947\u0902 \u0930\u0916\u093e \u0917\u092f\u093e |<\/li>\n<\/ol>\n<p><strong>2. \u092e\u0948\u0917\u094d\u0928\u0940\u0936\u093f\u092f\u092e \u0915\u0940 \u0924\u0930\u0939 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e\u0936\u0940\u0932\u0924\u093e \u0926\u093f\u0916\u093e\u0928\u0947 \u0935\u093e\u0932\u0947 \u0926\u094b \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0928\u093e\u092e \u0932\u093f\u0916\u093f\u090f? \u0906\u092a\u0915\u0947\u00a0\u091a\u092f\u0928 \u0915\u093e \u0915\u094d\u092f\u093e \u0906\u0927\u0930 \u0939\u0948?<br \/>\n<\/strong><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong>\u00a0\u092c\u0948\u0930\u0940\u0932\u093f\u092f\u092e (Be) \u0924\u0925\u093e\u00a0\u00a0\u0915\u0948\u0932\u094d\u0938\u093f\u092f\u092e (Ca) \u0926\u094b\u0928\u094b\u0902 \u0939\u0940\u00a0\u092e\u0948\u0917\u094d\u0928\u0940\u0936\u093f\u092f\u092e \u0915\u0940 \u0924\u0930\u0939\u00a0 \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e\u0936\u0940\u0932\u0924\u093e \u0926\u0930\u094d\u0936\u093e\u0924\u0947 \u0939\u0948 | \u0926\u094b\u0928\u094b\u0902 \u0915\u0947 \u0939\u0940 \u092c\u093e\u0939\u094d\u092f \u0915\u093f\u0936 \u092e\u0947\u0902 2 \u0938\u0902\u092f\u094b\u091c\u0940\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0939\u094b\u0924\u0947 \u0939\u0948 |Be(2,2) \u0924\u0925\u093e Ca(2,8,8,2)|<\/p>\n<p><strong>3. \u0915\u0947 \u0928\u093e\u092e \u092c\u0924\u093e\u0907\u090f\u0903<br \/>\n<\/strong><strong>(a) \u0924\u0940\u0928 \u0924\u0924\u094d\u0935\u094b\u0902 \u091c\u093f\u0928\u0915\u0947 \u0938\u092c\u0938\u0947 \u092c\u093e\u0939\u0930\u0940 \u0915\u094b\u0936 \u092e\u0947\u0902 \u090f\u0915 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0909\u092a\u0938\u094d\u0925\u093f\u0924 \u0939\u094b\u0964<br \/>\n(b) \u0926\u094b \u0924\u0924\u094d\u0935\u094b\u0902 \u091c\u093f\u0928\u0915\u0947 \u0938\u092c\u0938\u0947 \u092c\u093e\u0939\u0930\u0940 \u0915\u094b\u0936 \u092e\u0947\u0902 \u0926\u094b \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0909\u092a\u0938\u094d\u0925\u093f\u0924 \u0939\u094b\u0902\u0964<br \/>\n(c)\u0924\u0940\u0928 \u0924\u0924\u094d\u0935\u094b\u0902 \u091c\u093f\u0928\u0915\u093e \u092c\u093e\u0939\u0930\u0940 \u0915\u094b\u0936 \u092a\u0942\u0930\u094d\u0923 \u0939\u094b\u0964<\/strong><\/p>\n<p><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong><br \/>\n(a) \u0932\u093f\u0925\u093f\u092f\u092e (Li) , \u0938\u094b\u0921\u093f\u092f\u092e (Na) , \u092a\u094b\u091f\u0948\u0936\u093f\u092f\u092e (K) |<br \/>\n(b)\u00a0\u092e\u0948\u0917\u094d\u0928\u0940\u0936\u093f\u092f\u092e (Mg) ,\u00a0\u00a0\u0915\u0948\u0932\u094d\u0938\u093f\u092f\u092e (Ca) |<br \/>\n(c)\u00a0\u00a0\u0928\u093f\u0911\u0928 (Ne)\u00a0, \u0906\u0930\u094d\u0917\u0928 (Ar) , \u0915\u094d\u0930\u093f\u092a\u094d\u091f\u094b\u0902\u0928 (Kr) |<\/p>\n<p><strong>4.<br \/>\n(a)\u00a0\u0932\u0940\u0925\u093f\u092f\u092e, \u0938\u094b\u0921\u093f\u092f\u092e, \u092a\u094b\u091f\u0948\u0936\u093f\u092f\u092e, \u092f\u0947 \u0938\u092d\u0940 \u0927\u093e\u0924\u0941\u090f\u0901 \u091c\u0932 \u0938\u0947 \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u0915\u0930 \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u091c\u0928 \u0917\u0948\u0938 \u092e\u0941\u0915\u094d\u0924\u00a0\u0915\u0930\u0924\u0940 \u0939\u0948\u0902\u0964 \u0915\u094d\u092f\u093e \u0907\u0928 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947\u00a0\u092a\u0930\u092e\u093e\u0923\u0941\u0913\u0902 \u092e\u0947\u0902 \u0915\u094b\u0908 \u0938\u092e\u093e\u0928\u0924\u093e \u0939\u0948?<br \/>\n<\/strong><strong>(b) \u0939\u0940\u0932\u093f\u092f\u092e \u090f\u0915 \u0905\u0915\u094d\u0930\u093f\u092f\u093e\u0936\u0940\u0932 \u0917\u0948\u0938 \u0939\u0948 \u091c\u092c\u0915\u093f \u0928\u093f\u0911\u0928 \u0915\u0940 \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e\u0936\u0940\u0932\u0924\u093e \u0905\u0924\u094d\u092f\u0902\u0924 \u0915\u092e \u0939\u0948\u0964 \u0907\u0928\u0915\u0947\u00a0\u092a\u0930\u092e\u093e\u0923\u0941\u0913\u0902 \u092e\u0947\u0902 \u0915\u094b\u0908 \u0938\u092e\u093e\u0928\u0924\u093e \u0939\u0948?<\/strong><\/p>\n<p><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong><br \/>\n(a)\u00a0<sup>&#8216;\u00a0<\/sup>\u0939\u093e\u0901\u00a0<sup>&#8216;\u00a0<\/sup>\u0907\u0928 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u092a\u0930\u092e\u093e\u0923\u0941\u0913\u0902 \u092e\u0947\u0902 \u0938\u092e\u093e\u0928\u0924\u093e \u0939\u0948 | \u0907\u0928\u0915\u0947 \u092c\u093e\u0939\u094d\u092f\u0924\u092e \u0915\u094b\u0937 \u092e\u0947\u0902 \u0915\u0947\u0935\u0932 1\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0939\u0948 | \u0907\u0928\u0915\u0940 \u0938\u0902\u092f\u094b\u091c\u0915\u0924\u093e\u090f\u0901 \u092d\u0940 \u0938\u092e\u093e\u0928 \u0939\u0948 |<br \/>\n(b)\u00a0<sup>&#8216;\u00a0<\/sup>\u0939\u093e\u0901\u00a0<sup>&#8216;\u00a0<\/sup>\u0907\u0928\u092e\u0947\u0902 \u092d\u0940 \u0938\u092e\u093e\u0928\u0924\u093e \u0939\u0948 |\u00a0\u00a0\u0926\u094b\u0928\u094b\u0902 \u0938\u0902\u092f\u094b\u091c\u0915\u0924\u093e \u00a0<sup>&#8216;\u00a0<\/sup>o<sup>\u00a0&#8216;\u00a0<\/sup>\u0939\u0948 \u0924\u0925\u093e \u0907\u0928\u0915\u0947 \u092c\u093e\u0939\u094d\u092f\u0924\u092e \u0915\u094b\u0936 \u092a\u0942\u0930\u094d\u0923 \u0939\u0948 |<\/p>\n<p><strong>5. \u0906\u0927\u0941\u0928\u093f\u0915 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u092a\u0939\u0932\u0947 \u0926\u0938 \u0924\u0924\u094d\u0935\u094b\u0902 \u092e\u0947\u0902 \u0915\u094c\u0928 \u0938\u0940 \u0927\u093e\u0924\u0941\u090f\u0901 \u0939\u0948\u0902?<br \/>\n<\/strong><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong>\u00a0\u0932\u093f\u0925\u093f\u092f\u092e \u090f\u0935\u0902 \u092c\u0947\u0930\u0940\u0932\u093f\u092f\u092e \u0927\u093e\u0924\u0941\u090f\u0901 \u0939\u0948 |<\/p>\n<p><strong>6. \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u0907\u0928\u0915\u0947\u00a0\u0938\u094d\u0925\u093e\u0928 \u0915\u0947\u00a0\u0906\u0927\u093e\u0930 \u092a\u0930 \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938 \u0924\u0924\u094d\u0935 \u092e\u0947\u0902 \u0938\u092c\u0938\u0947 \u0905\u0927\u093f\u0915 \u0927\u093e\u0924\u094d\u0935\u093f\u0915 \u0905\u092d\u093f\u0932\u0915\u094d\u0937\u0923\u00a0\u0915\u0940 \u0935\u093f\u0936\u0947\u0937\u0924\u093e \u0939\u0948?<br \/>\n<\/strong><strong>Ga , Ge , As , Se , Be |<br \/>\n<\/strong><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong>\u00a0Be |<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #0000ff;\"><strong>\u0905\u092d\u094d\u092f\u093e\u0938<\/strong><\/span><\/p>\n<p><strong>1. \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u092c\u093e\u0908\u0902 \u0938\u0947 \u0926\u093e\u0908\u0902 \u0913\u0930 \u091c\u093e\u0928\u0947 \u092a\u0930, \u092a\u094d\u0930\u0935\u0943\u0924\u094d\u0924\u093f\u092f\u094b\u0902 \u0915\u0947 \u092c\u093e\u0930\u0947 \u092e\u0947\u0902 \u0915\u094c\u0928 \u0938\u093e \u0915\u0925\u0928 \u0905\u0938\u0924\u094d\u092f \u0939\u0948?<\/strong><br \/>\n<strong>(a)\u00a0\u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0940 \u0927\u093e\u0924\u094d\u0935\u093f\u0915 \u092a\u094d\u0930\u0915\u0943\u0924\u093f \u0918\u091f\u0924\u0940 \u0939\u0948\u0964<\/strong><br \/>\n<strong>(b) \u0938\u0902\u092f\u094b\u091c\u0915\u0924\u093e \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u092c\u0922\u093c \u091c\u093e\u0924\u0940 \u0939\u0948\u0964<\/strong><br \/>\n<strong>(c) \u092a\u0930\u092e\u093e\u0923\u0941 \u0906\u0938\u093e\u0928\u0940 \u0938\u0947 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u093e \u0924\u094d\u092f\u093e\u0917 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902\u0964<\/strong><br \/>\n<strong>(d) \u0907\u0928\u0915\u0947 \u0911\u0915\u094d\u0938\u093e\u0907\u0921 \u0905\u0927\u093f\u0915 \u0905\u092e\u094d\u0932\u0940\u092f \u0939\u094b \u091c\u093e\u0924\u0947 \u0939\u0948\u0902\u0964<\/strong><\/p>\n<p><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong>\u00a0(c) \u092a\u0930\u092e\u093e\u0923\u0941 \u0906\u0938\u093e\u0928\u0940 \u0938\u0947 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u093e \u0924\u094d\u092f\u093e\u0917 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902\u0964<\/p>\n<p><strong>2. \u0924\u0924\u094d\u0935 X, XCl<sub>2<\/sub>\u00a0\u0938\u0942\u0924\u094d\u0930\u00a0\u0915\u093e \u0935\u093e\u0932\u093e \u090f\u0915 \u0915\u094d\u0932\u094b\u0930\u093e\u0907\u0921 \u092c\u0928\u093e\u0924\u093e \u0939\u0948 \u091c\u094b \u090f\u0915 \u0920\u094b\u0938 \u0939\u0948 \u0924\u0925\u093e \u091c\u093f\u0938\u0915\u093e \u0917\u0932\u0928\u093e\u0902\u0915 \u0905\u0927\u093f\u0915\u00a0\u0939\u0948\u0964 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u092f\u0939 \u0924\u0924\u094d\u0935 \u0938\u0902\u092d\u0935\u0924\u0903 \u0915\u093f\u0938 \u0938\u092e\u0942\u0939 \u0915\u0947 \u0905\u0902\u0924\u0930\u094d\u0917\u0924 \u0939\u094b\u0917\u093e?<\/strong><br \/>\n<strong>(a) NA<\/strong><br \/>\n<strong>(b) Mg<\/strong><br \/>\n<strong>(c) Al<\/strong><br \/>\n<strong>(d) Si<\/strong><\/p>\n<p><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong>\u00a0(b) Mg |<\/p>\n<p><strong>3. \u0915\u093f\u0938 \u0924\u0924\u094d\u0935 \u092e\u0947\u0902<\/strong><\/p>\n<p><strong>(a)\u0926\u094b \u0915\u094b\u0936 \u0939\u0948\u0902 \u0924\u0925\u093e \u0926\u094b\u0928\u094b\u0902 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928\u094b\u0902 \u0938\u0947 \u092a\u0942\u0930\u093f\u0924 \u0939\u0948\u0902?<br \/>\n<\/strong><strong>(b) \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928\u093f\u0915 \u0935\u093f\u0928\u094d\u092f\u093e\u0938 2, 8, 2 \u0939\u0948?<br \/>\n<\/strong><strong>(c) \u0915\u0941\u091b \u0924\u0940\u0928 \u0915\u094b\u0936 \u0939\u0948\u0902 \u0924\u0925\u093e \u0938\u0902\u092f\u094b\u091c\u0915\u0924\u093e \u0915\u094b\u0936 \u092e\u0947\u0902 \u091a\u093e\u0930 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0939\u0948\u0902?<br \/>\n<\/strong><strong>(d) \u0915\u0941\u091b \u0926\u094b \u0915\u094b\u0936 \u0939\u0948\u0902 \u0924\u0925\u093e \u0938\u0902\u092f\u094b\u091c\u0915\u0924\u093e \u0915\u094b\u0936 \u092e\u0947\u0902 \u0924\u0940\u0928 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0939\u0948\u0902?<br \/>\n<\/strong><strong>(e) \u0926\u0942\u0938\u0930\u0947 \u0915\u094b\u0936 \u092e\u0947\u0902 \u092a\u0939\u0932\u0947 \u0915\u094b\u0936 \u0938\u0947 \u0926\u094b\u0917\u0941\u0928\u0947 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0939\u0948\u0948\u0902?<\/strong><\/p>\n<p><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong><br \/>\n(a)\u00a0\u0928\u093f\u0911\u0928 (Ne)<br \/>\n(b) \u092e\u0948\u0917\u094d\u0928\u0940\u0936\u093f\u092f\u092e (Mg)<br \/>\n(c)\u00a0\u0938\u093f\u0932\u093f\u0915\u0949\u0928 (Si)<br \/>\n(d)\u00a0\u092c\u094b\u0930\u0949\u0928 (B)<br \/>\n(e)\u00a0\u0915\u093e\u0930\u094d\u092c\u0928 (C)<\/p>\n<p><strong>4.<br \/>\n(a) \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u092c\u094b\u0930\u093e\u0928 \u0915\u0947 \u0938\u094d\u0924\u0902\u092d \u0915\u0947 \u0938\u092d\u0940 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0915\u094c\u0928 \u0938\u0947 \u0917\u0941\u0923\u0927\u0930\u094d\u092e \u0938\u092e\u093e\u0928 \u0939\u0948\u0902?<br \/>\n(b) \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u092b\u0932\u0941\u0913\u0930\u0940\u0928 \u0915\u0947 \u0938\u094d\u0924\u0902\u092d \u0915\u0947\u00a0\u0938\u092d\u0940 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947\u00a0\u0915\u094c\u0928 \u0938\u0947 \u0917\u0941\u0923\u0927\u0930\u094d\u092e \u0938\u092e\u093e\u0928 \u0939\u0948\u0902?<\/strong><\/p>\n<p><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong><br \/>\n<strong>(a) \u0938\u093e\u092e\u093e\u0928 \u0917\u0941\u0923\u0927\u0930\u094d\u092e :-\u00a0<\/strong><\/p>\n<ol>\n<li>\u0938\u092d\u0940 \u0924\u0924\u094d\u0935 \u0927\u093e\u0924\u0941\u090f\u0901 \u0939\u0948 |<\/li>\n<li>\u090a\u092a\u0930 \u0938\u0947 \u0928\u0940\u091a\u0947 \u091c\u093e\u0928\u0947 \u092a\u0930 \u0906\u0915\u0930 \u090f\u0935\u0902 \u0927\u093e\u0924\u094d\u0935\u093f\u0915 \u0917\u0941\u0923 \u092c\u0922\u0924\u093e \u091c\u093e\u0924\u093e \u0939\u0948 |<\/li>\n<li>\u0938\u092d\u0940 \u0935\u093f\u0918\u0941\u0924 \u0915\u0947 \u0938\u0941\u091a\u093e\u0932\u0915 \u0939\u094b\u0924\u0947 \u0939\u0948 |<\/li>\n<\/ol>\n<p><strong>(b) \u0938\u093e\u092e\u093e\u0928 \u0917\u0941\u0923\u0927\u0930\u094d\u092e :-\u00a0<\/strong><\/p>\n<ol>\n<li>\u0938\u092d\u0940 \u0924\u0924\u094d\u0935 \u0905\u0927\u093e\u0924\u0941\u090f\u0901 \u0939\u0948 \u0924\u0925\u093e \u0938\u0902\u092f\u094b\u091c\u0915\u0924\u093e 7 \u0939\u094b\u0924\u0940 \u0939\u0948 |<\/li>\n<li>\u0938\u092d\u0940 \u0935\u093f\u0918\u0941\u0924 \u0915\u0947 \u0915\u0941\u091a\u093e\u0932\u0915 \u0939\u0948 |<\/li>\n<\/ol>\n<p><strong>5. \u090f\u0915 \u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u093e \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928\u093f\u0915 \u0935\u093f\u0928\u094d\u092f\u093e\u0938 2, 8, 7 \u0939\u0948\u0964<br \/>\n(a)\u00a0\u0907\u0938 \u0924\u0924\u094d\u0935 \u0915\u0940 \u092a\u0930\u092e\u093e\u0923\u0941-\u0938\u0902\u0916\u094d\u092f\u093e \u0915\u094d\u092f\u093e \u0939\u0948?<br \/>\n(b) \u0928\u093f\u092e\u094d\u0928 \u092e\u0947\u0902 \u0915\u093f\u0938 \u0924\u0924\u094d\u0935 \u0915\u0947 \u0938\u093e\u0925 \u0907\u0938\u0915\u0940 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0938\u092e\u093e\u0928\u0924\u093e \u0939\u094b\u0917\u0940? ;\u092a\u0930\u092e\u093e\u0923\u0941-\u0938\u0902\u0916\u094d\u092f\u093e \u0915\u094b\u0937\u094d\u0920\u0915 \u092e\u0947\u0902 \u0926\u0940 \u0917\u0908 \u0939\u0948 |<br \/>\n<\/strong><strong>N(7) , F(9) , P(15) , Ar(18)\u00a0<\/strong><\/p>\n<p><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong><br \/>\n(a) \u0907\u0938\u0915\u0940 \u092a\u0930\u092e\u093e\u0923\u0941 \u0938\u0902\u0916\u094d\u092f\u093e 17 \u0939\u0948 |<br \/>\n(b) F(9) &#8211; 2,7 \u0915\u0947 \u0938\u093e\u0925 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0917\u0941\u0923\u094b\u0902 \u092e\u0947\u0902 \u0938\u092e\u093e\u0928\u0924\u093e \u0939\u094b\u0917\u0940 |<\/p>\n<p><strong>6. \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u0924\u0940\u0928 \u0924\u0924\u094d\u0935 \u0964 A,B \u0924\u0925\u093e C\u00a0\u0915\u0940 \u0938\u094d\u0925\u093f\u0924\u093f \u0928\u093f\u092e\u094d\u0928 \u092a\u094d\u0930\u0915\u093e\u0930 \u0939\u0948:<br \/>\n\u0938\u092e\u0942\u0939 16 \u00a0 \u00a0 \u00a0 \u0938\u092e\u0942\u0939 17<br \/>\n&#8212;\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&#8212;<\/strong><\/p>\n<p><strong>\u00a0 \u00a0 &#8212;\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 A<\/strong><\/p>\n<p><strong>\u00a0 \u00a0 &#8212;\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&#8212;<\/strong><\/p>\n<p><strong>\u00a0 \u00a0 B\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0C<\/strong><\/p>\n<p><strong>\u0905\u092c \u092c\u0924\u093e\u0907\u090f \u0915\u093f:<br \/>\n(a) \u0927\u093e\u0924\u0941 \u0939\u0948 \u092f\u093e \u0905\u0927\u093e\u0924\u0941\u0964<br \/>\n(b)\u0915\u0940 \u0905\u092a\u0947\u0915\u094d\u0937\u093e \u00a0\u0905\u0927\u093f\u0915 \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e\u0936\u0940\u0932 \u0939\u0948 \u092f\u093e \u0915\u092e?<br \/>\n(c) \u0915\u093e \u0938\u093e\u0907\u091c\u093c \u00a0\u0938\u0947 \u092c\u0921\u093c\u093e \u0939\u094b\u0917\u093e \u092f\u093e \u091b\u094b\u091f\u093e?<br \/>\n(d) \u0915\u093f\u0938 \u092a\u094d\u0930\u0915\u093e\u0930 \u0906\u092f\u0928, \u0927\u0928\u093e\u092f\u0928 \u092f\u093e \u090b\u0923\u093e\u092f\u0928 \u092c\u0928\u093e\u090f\u0917\u093e?<\/strong><\/p>\n<p><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong><br \/>\n(a) A- \u0905\u0927\u093e\u0924\u0941 \u0939\u0948 |<br \/>\n(b) C \u0915\u092e \u0915\u094d\u0930\u093f\u092f\u093e\u0936\u0940\u0932 \u0939\u0948 |<br \/>\n(c) C \u0915\u093e \u0906\u0915\u093e\u0930 B \u0938\u0947 \u091b\u094b\u091f\u093e \u0939\u0948<br \/>\n(d) \u0924\u0924\u094d\u0935 A \u090b\u0923\u093e\u092f\u0928 \u092c\u0928\u093e\u092f\u0947\u0917\u093e |<\/p>\n<p><strong>7. \u0928\u093e\u0907\u091f\u094d\u0930\u094b\u091c\u0928 (\u092a\u0930\u092e\u093e\u0923\u0941-\u0938\u0902\u0916\u094d\u092f\u093e7)\u0924\u0925\u093e \u092a\u0930\u092e\u093e\u0923\u0941-\u0938\u0902\u0916\u094d\u092f\u093e 15\u0915\u0947 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u0915\u0947\u00a0\u0938\u092e\u0942\u0939 15 \u0915\u0947\u00a0\u0924\u0924\u094d\u0935 \u0939\u0948\u0902\u0964 \u0907\u0928 \u0926\u094b\u0928\u094b\u0902 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u093e \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928\u093f\u0915 \u0935\u093f\u0928\u094d\u092f\u093e\u0938 \u0932\u093f\u0916\u093f\u090f\u0964 \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094c\u0928 \u0938\u093e \u0924\u0924\u094d\u0935 \u0905\u0927\u093f\u0915 \u090b\u0923\u00a0\u0935\u093f\u0926\u094d\u092f\u0941\u0924\u00a0\u0939\u094b\u0917\u093e \u0914\u0930 \u0915\u094d\u092f\u094b\u0902?<\/strong><\/p>\n<p><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong>\u00a0\u0928\u093e\u0907\u091f\u094d\u0930\u094b\u091c\u0928 \u0915\u0940 \u092a\u0930\u092e\u093e\u0923\u0941 \u0938\u0902\u0916\u094d\u092f\u093e 7 (2,5) \u0939\u0948 \u0905\u0924: \u092f\u0939 \u0905\u0927\u093f\u0915 \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u090b\u0923\u093e\u0924\u094d\u092e\u0915 \u0939\u094b\u0917\u093e | \u092b\u0949\u0938\u094d\u092b\u094b\u0930\u0938 \u0914\u0930 \u0928\u093e\u0907\u091f\u094d\u0930\u094b\u091c\u0928 \u0926\u094b\u0928\u094b\u0902 \u0939\u0940 \u0905\u0927\u093e\u0924\u0941\u090f\u0901 \u0939\u0948 \u092a\u0930\u0928\u094d\u0924\u0941\u00a0\u092b\u0949\u0938\u094d\u092b\u094b\u0930\u0938\u00a015 (2,8,5) \u0928\u093e\u0907\u091f\u094b\u091c\u0928 \u0938\u0947 \u0928\u0940\u091a\u0947 \u0915\u0940 \u0913\u0930 \u0906\u0924\u093e \u0939\u0948 \u0914\u0930 \u0907\u0938 \u092a\u094d\u0930\u0915\u093e\u0930 \u090b\u0923\u093e\u0924\u094d\u092e\u0915 \u0918\u091f\u0924\u0940 \u0939\u0948 |<\/p>\n<p><strong>8. \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928\u093f\u0915 \u0935\u093f\u0928\u094d\u092f\u093e\u0938 \u0915\u093e \u0906\u0927\u0941\u0928\u093f\u0915 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u0924\u0924\u094d\u0935 \u0915\u0940 \u0938\u094d\u0925\u093f\u0924\u093f \u0938\u0947 \u0915\u094d\u092f\u093e \u0938\u0902\u092c\u0902\u0927 \u0939\u0948?<\/strong><\/p>\n<p><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong>\u00a0\u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u093e \u0909\u0928\u0915\u0947\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928\u093f\u0915 \u0935\u093f\u0928\u094d\u092f\u093e\u0938 \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 \u0935\u0930\u094d\u0917\u094b\u0902\u0915\u0930\u0923 \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0939\u0948 | \u0915\u093f\u0938\u0940 \u0924\u0924\u094d\u0935 \u0915\u0940 \u092c\u093e\u0939\u094d\u092f\u0924\u092e \u0915\u094b\u0936 \u092e\u0947\u0902 \u0909\u092a\u0938\u093f\u0925\u0924\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0938\u0947 \u0909\u0938\u0915\u0940 \u0938\u0902\u092f\u094b\u091c\u0915\u0924\u093e \u092a\u0924\u093e \u091a\u0932\u0924\u0940 \u0939\u0948 \u0924\u0925\u093e \u0915\u094b\u0936\u094b\u0902 \u0915\u0940 \u0915\u0941\u0932 \u0938\u0902\u0916\u094d\u092f\u093e \u0909\u0938\u0915\u0940 \u0906\u0935\u0930\u094d\u0924 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0924 |<\/p>\n<p><strong>9. \u0906\u0927\u0941\u0928\u093f\u0915 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u0915\u0948\u0932\u094d\u0938\u093f\u092f\u092e (\u092a\u0930\u092e\u093e\u0923\u0941-\u0938\u0902\u0916\u094d\u092f\u093e 20) \u091a\u093e\u0930\u094b\u0902 \u0913\u0930 12,\u00a019\u00a021 \u0924\u0925\u093e 38\u00a0\u092a\u0930\u092e\u093e\u0923\u0941-\u0938\u0902\u0916\u094d\u092f\u093e \u0935\u093e\u0932\u0947 \u0924\u0924\u094d\u0935 \u0938\u094d\u0925\u093f\u0924 \u0939\u0948\u0902\u0964 \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0928 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947\u00a0\u092d\u094c\u0924\u093f\u0915 \u090f\u0935\u0902 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0917\u0941\u0923\u0927\u0930\u094d\u092e \u0915\u0948\u0932\u094d\u0938\u093f\u092f\u092e\u00a0\u0915\u0947 \u0938\u092e\u093e\u0928 \u0939\u0948\u0902?<\/strong><\/p>\n<p><strong>\u0909\u0924\u094d\u0924\u0930 :<\/strong>\u00a0\u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 C(20) \u0915\u0947 \u091a\u093e\u0930\u094b\u0902 \u0913\u0930 12,19,21 \u0935 38 \u092a\u0930\u092e\u093e\u0923\u0941 \u0938\u0902\u0916\u094d\u092f\u093e \u0935\u093e\u0932\u0947 \u0924\u0924\u094d\u0935 \u0939\u0948 | \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u092a\u0930\u092e\u093e\u0923\u0941 \u0938\u0902\u0916\u094d\u092f\u093e 21 (2,8,9,2) \u0924\u0925\u093e \u092a\u0930\u092e\u093e\u0923\u0941 \u0938\u0902\u0916\u094d\u092f\u093e 38 (2,8,18,2) \u0935\u093e\u0932\u0947 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0935 \u092d\u094c\u0924\u093f\u0915 \u0917\u0941\u0923\u0927\u0930\u094d\u092e \u0938\u093e\u092e\u093e\u0928 \u0939\u094b\u0902\u0917\u0947 |<\/p>\n<p><strong>10. \u0906\u0927\u0941\u0928\u093f\u0915 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u090f\u0935\u0902 \u092e\u0947\u0928\u094d\u0921\u0947\u0932\u0940\u092b \u0915\u0940 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u092e\u0947\u0902 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0940 \u0935\u094d\u092f\u0935\u0938\u094d\u0925\u093e \u0915\u0940 \u0924\u0941\u0932\u0928\u093e \u0915\u0940\u091c\u093f\u090f\u0964<\/strong><\/p>\n<p><strong>\u0909\u0924\u094d\u0924\u0930 :<br \/>\n\u0906\u0927\u0941\u0928\u093f\u0915 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 :-<\/strong><\/p>\n<ol>\n<li>\u092f\u0939 \u092a\u0930\u092e\u093e\u0923\u0941 \u0938\u0902\u0916\u094d\u092f\u093e \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 \u0915\u094d\u0930\u092e\u093f\u0924 \u0939\u0948 |<\/li>\n<li>\u0907\u0938\u092e\u0947\u0902 18 \u0935\u0930\u094d\u0917 \u0939\u0948 |<\/li>\n<li>\u0907\u0928\u092e\u0947\u0902 \u0905\u0915\u094d\u0930\u093f\u092f \u0917\u0948\u0938\u094b\u0902 \u0915\u094b 18\u0935\u0947\u0902 \u0935\u0930\u094d\u0917 \u092e\u0947\u0902 \u0930\u0916\u093e \u0917\u092f\u093e \u0939\u0948 |<\/li>\n<\/ol>\n<p><strong>\u092e\u0947\u0928\u094d\u0921\u0947\u0932\u0940\u092b \u0915\u0940 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 :-<\/strong><\/p>\n<ol>\n<li>\u092f\u0939 \u092a\u0930\u092e\u093e\u0923\u0941 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u092a\u0930 \u0906\u0927\u093e\u0930\u093f\u0924 \u0939\u0948 |<\/li>\n<li>\u0907\u0938\u092e\u0947\u0902 8 \u0938\u092e\u0942\u0939 \u0939\u0948 |<\/li>\n<li>\u0907\u0928\u092e\u0947\u0902 \u0905\u0915\u094d\u0930\u093f\u092f \u0917\u0948\u0938\u094b\u0902 \u0915\u094b \u0915\u094b\u0908 \u0938\u094d\u0925\u093e\u0928 \u0928\u0939\u0940\u0902 \u092e\u093f\u0932\u093e \u0939\u0948 |<\/li>\n<\/ol>\n<p>Hope given NCERT Solutions for Class 10 Science Chapter 5\u00a0are helpful to complete your homework.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium) These Solutions are part of NCERT Solutions for Class 10 Science in Hindi Medium. Here we have given NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements. Chapter 5. \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0906\u0935\u0930\u094d\u0924 \u0935\u0930\u094d\u0917\u0940\u0915\u0930\u0923 \u0905\u0927\u094d\u092f\u093e\u092f-\u0938\u092e\u0940\u0915\u094d\u0937\u093e\u00a0 \u0938\u0928\u094d 1800 \u0924\u0915 \u0915\u0947\u0935\u0932 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-chapter-5-hindi\/\"> <span class=\"screen-reader-text\">NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium)<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":5,"featured_media":7100,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","spay_email":""},"categories":[2],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium) - MCQ Questions<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-chapter-5-hindi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium) - MCQ Questions\" \/>\n<meta property=\"og:description\" content=\"NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium) These Solutions are part of NCERT Solutions for Class 10 Science in Hindi Medium. Here we have given NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements. Chapter 5. \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0906\u0935\u0930\u094d\u0924 \u0935\u0930\u094d\u0917\u0940\u0915\u0930\u0923 \u0905\u0927\u094d\u092f\u093e\u092f-\u0938\u092e\u0940\u0915\u094d\u0937\u093e\u00a0 \u0938\u0928\u094d 1800 \u0924\u0915 \u0915\u0947\u0935\u0932 &hellip; NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium) Read More &raquo;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-chapter-5-hindi\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ Questions\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/NCERTSolutionsGuru\/\" \/>\n<meta property=\"article:published_time\" content=\"2021-07-23T05:58:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-03-02T04:53:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mcq-questions.com\/wp-content\/uploads\/2018\/07\/NCERT-Solutions-for-Class-10-Science-Chapter-5-Periodic-Classification-of-Elements-Hindi-Medium.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@ncertsolguru\" \/>\n<meta name=\"twitter:site\" content=\"@ncertsolguru\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Raju\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/mcq-questions.com\/#website\",\"url\":\"https:\/\/mcq-questions.com\/\",\"name\":\"MCQ Questions\",\"description\":\"MCQ Questions for Class 1 to 12\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/mcq-questions.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-chapter-5-hindi\/#primaryimage\",\"inLanguage\":\"en-US\",\"url\":\"https:\/\/i2.wp.com\/mcq-questions.com\/wp-content\/uploads\/2018\/07\/NCERT-Solutions-for-Class-10-Science-Chapter-5-Periodic-Classification-of-Elements-Hindi-Medium.png?fit=1280%2C720&ssl=1\",\"contentUrl\":\"https:\/\/i2.wp.com\/mcq-questions.com\/wp-content\/uploads\/2018\/07\/NCERT-Solutions-for-Class-10-Science-Chapter-5-Periodic-Classification-of-Elements-Hindi-Medium.png?fit=1280%2C720&ssl=1\",\"width\":1280,\"height\":720,\"caption\":\"NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium)\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-chapter-5-hindi\/#webpage\",\"url\":\"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-chapter-5-hindi\/\",\"name\":\"NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium) - 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MCQ Questions","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-chapter-5-hindi\/","og_locale":"en_US","og_type":"article","og_title":"NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium) - MCQ Questions","og_description":"NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium) These Solutions are part of NCERT Solutions for Class 10 Science in Hindi Medium. Here we have given NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements. Chapter 5. \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u0947 \u0906\u0935\u0930\u094d\u0924 \u0935\u0930\u094d\u0917\u0940\u0915\u0930\u0923 \u0905\u0927\u094d\u092f\u093e\u092f-\u0938\u092e\u0940\u0915\u094d\u0937\u093e\u00a0 \u0938\u0928\u094d 1800 \u0924\u0915 \u0915\u0947\u0935\u0932 &hellip; NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium) Read More &raquo;","og_url":"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-chapter-5-hindi\/","og_site_name":"MCQ Questions","article_publisher":"https:\/\/www.facebook.com\/NCERTSolutionsGuru\/","article_published_time":"2021-07-23T05:58:21+00:00","article_modified_time":"2022-03-02T04:53:49+00:00","og_image":[{"width":1280,"height":720,"url":"https:\/\/mcq-questions.com\/wp-content\/uploads\/2018\/07\/NCERT-Solutions-for-Class-10-Science-Chapter-5-Periodic-Classification-of-Elements-Hindi-Medium.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_creator":"@ncertsolguru","twitter_site":"@ncertsolguru","twitter_misc":{"Written by":"Raju","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebSite","@id":"https:\/\/mcq-questions.com\/#website","url":"https:\/\/mcq-questions.com\/","name":"MCQ Questions","description":"MCQ Questions for Class 1 to 12","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/mcq-questions.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"ImageObject","@id":"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-chapter-5-hindi\/#primaryimage","inLanguage":"en-US","url":"https:\/\/i2.wp.com\/mcq-questions.com\/wp-content\/uploads\/2018\/07\/NCERT-Solutions-for-Class-10-Science-Chapter-5-Periodic-Classification-of-Elements-Hindi-Medium.png?fit=1280%2C720&ssl=1","contentUrl":"https:\/\/i2.wp.com\/mcq-questions.com\/wp-content\/uploads\/2018\/07\/NCERT-Solutions-for-Class-10-Science-Chapter-5-Periodic-Classification-of-Elements-Hindi-Medium.png?fit=1280%2C720&ssl=1","width":1280,"height":720,"caption":"NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium)"},{"@type":"WebPage","@id":"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-chapter-5-hindi\/#webpage","url":"https:\/\/mcq-questions.com\/ncert-solutions-for-class-10-science-chapter-5-hindi\/","name":"NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements (Hindi Medium) - 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