{"id":263884,"date":"2025-07-21T09:44:03","date_gmt":"2025-07-21T09:44:03","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=263884"},"modified":"2025-07-21T09:44:05","modified_gmt":"2025-07-21T09:44:05","slug":"which-of-the-following-is-the-correct-lewis-structure-for-ammonia-nh3","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/21\/which-of-the-following-is-the-correct-lewis-structure-for-ammonia-nh3\/","title":{"rendered":"Which of the following is the correct Lewis structure for ammonia, NH3"},"content":{"rendered":"\n

Which of the following is the correct Lewis structure for ammonia, NH3<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

The correct Lewis structure for ammonia (NH3) is based on the following steps:<\/p>\n\n\n\n

    \n
  1. Determine the Total Number of Valence Electrons<\/strong>:\n
      \n
    • Nitrogen (N) is in group 15 of the periodic table, so it has 5 valence electrons.<\/li>\n\n\n\n
    • Each hydrogen (H) atom, being in group 1, has 1 valence electron.<\/li>\n\n\n\n
    • Therefore, for NH3, the total number of valence electrons is: 5\u2009(from\u00a0N)+3\u00d71\u2009(from\u00a0H)=8\u2009valence\u00a0electrons.5 \\, (\\text{from N}) + 3 \\times 1 \\, (\\text{from H}) = 8 \\, \\text{valence electrons}.5(from\u00a0N)+3\u00d71(from\u00a0H)=8valence\u00a0electrons.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • Select a Central Atom<\/strong>:\n
        \n
      • Nitrogen is the central atom because it is less electronegative than hydrogen.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
      • Draw the Skeleton Structure<\/strong>:\n
          \n
        • Place nitrogen in the center, with the three hydrogen atoms bonded to it.<\/li>\n\n\n\n
        • This forms a simple skeletal structure: H-N-H with one more H on the other side.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
        • Distribute Electrons<\/strong>:\n
            \n
          • First, draw single bonds (using one pair of electrons) between nitrogen and each hydrogen atom. Each bond uses 2 electrons, so 3 bonds use a total of 6 electrons.<\/li>\n\n\n\n
          • After the bonds are formed, you have 2 remaining electrons (from the total of 8).<\/li>\n\n\n\n
          • These 2 electrons will go as a lone pair on nitrogen.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
          • Check Octet Rule<\/strong>:\n
              \n
            • Nitrogen now has 6 electrons from the 3 bonds and 2 more electrons from the lone pair. This gives nitrogen a full octet (8 electrons around it).<\/li>\n\n\n\n
            • Each hydrogen has 2 electrons, which satisfies the duet rule for hydrogen.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
            • Final Structure<\/strong>:
              The final Lewis structure of NH3 is:\n
                \n
              • Nitrogen (N) in the center with three single bonds to three hydrogen atoms (H).<\/li>\n\n\n\n
              • Nitrogen has a lone pair of electrons on top.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n

                The shape of the molecule, based on the Lewis structure, is trigonal pyramidal<\/strong>, due to the lone pair on nitrogen. This lone pair repels the bonding pairs, causing the hydrogen atoms to be arranged at an angle less than 109.5\u00b0, which is typical for a trigonal pyramidal geometry.<\/p>\n\n\n\n

                \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

                Which of the following is the correct Lewis structure for ammonia, NH3 The Correct Answer and Explanation is: The correct Lewis structure for ammonia (NH3) is based on the following steps: The shape of the molecule, based on the Lewis structure, is trigonal pyramidal, due to the lone pair on nitrogen. This lone pair repels […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-263884","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/263884","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=263884"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/263884\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=263884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=263884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=263884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}