{"id":87842,"date":"2025-06-01T06:55:16","date_gmt":"2025-06-01T06:55:16","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87842"},"modified":"2025-06-01T06:55:16","modified_gmt":"2025-06-01T06:55:16","slug":"which-one-of-the-following-is-the-correct-order-of-the-valencies-of-el","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-order-of-the-valencies-of-el\/","title":{"rendered":"Which one of the following is the correct order of the valencies of el"},"content":{"rendered":"

Which one of the following is the correct order of the valencies of elements Ne, Si, N and Mg ?<\/p>\n

[amp_mcq option1=”Ne < Mg < N < Si\" option2=\"Si < N < Mg < Ne\" option3=\"Ne < N < Si < Mg\" option4=\"Mg < Ne < N < Si\" correct=\"option1\"]\n\n\n\n

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This question was previously asked in<\/div>\n
UPSC NDA-1 – 2022<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct order of the valencies of elements Ne, Si, N and Mg is Ne < Mg < N < Si.\n<\/section>\n
\nValency is the combining capacity of an element, typically the number of electrons an atom needs to gain, lose, or share to form a chemical bond and achieve a stable electron configuration.
\n<\/section>\n
\nNeon (Ne) is a noble gas with a full outer electron shell, so its valency is generally 0. Magnesium (Mg) is in Group 2 and typically loses 2 electrons, so its valency is 2. Nitrogen (N) is in Group 15 and typically gains 3 electrons or forms 3 covalent bonds, so its valency is 3. Silicon (Si) is in Group 14 and typically forms 4 covalent bonds, so its valency is 4. Ordering these valencies (0, 2, 3, 4) gives Ne < Mg < N < Si.\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is the correct order of the valencies of elements Ne, Si, N and Mg ? [amp_mcq option1=”Ne < Mg < N < Si\" option2=\"Si < N < Mg < Ne\" option3=\"Ne < N < Si < Mg\" option4=\"Mg < Ne < N < Si\" correct=\"option1\"] This question was previously asked ... \n\n

Detailed SolutionWhich one of the following is the correct order of the valencies of el<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1093],"tags":[1108,1162,1096],"class_list":["post-87842","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1108","tag-atomic-structure","tag-chemistry","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is the correct order of the valencies of el<\/title>\n<meta name=\"description\" content=\"The correct order of the valencies of elements Ne, Si, N and Mg is Ne < Mg < N < Si. 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