{"id":263914,"date":"2025-07-21T10:00:36","date_gmt":"2025-07-21T10:00:36","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=263914"},"modified":"2025-07-21T10:00:45","modified_gmt":"2025-07-21T10:00:45","slug":"draw-the-lewis-electron-dot-diagram-for-ammonia-nh3-on-a-sheet-of-scrap-paper","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/21\/draw-the-lewis-electron-dot-diagram-for-ammonia-nh3-on-a-sheet-of-scrap-paper\/","title":{"rendered":"Draw the Lewis electron dot diagram for ammonia (NH3) on a sheet of scrap paper."},"content":{"rendered":"\n


Draw the Lewis electron dot diagram for ammonia (NH3) on a sheet of scrap paper. You may consult the periodic table on Zoom to draw your diagram. Which of the following is true regarding the Lewis diagram for ammonia? (2 points) a. Ammonia contains three covalent bonds – one to each hydrogen atom, and the nitrogen atom has no lone pairs of electrons. b. Ammonia contains three covalent bonds – one to each hydrogen atom, and the nitrogen atom has one lone pair of electrons. c. Ammonia contains one nitrogen ion covalently bonded to three hydrogen ions. d. Ammonia is composed of one nitrogen ion and three hydrogen ions.<\/p>\n\n\n\n

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

The correct answer is:<\/p>\n\n\n\n

b. Ammonia contains three covalent bonds – one to each hydrogen atom, and the nitrogen atom has one lone pair of electrons.<\/strong><\/p>\n\n\n\n

Explanation:<\/h3>\n\n\n\n

To draw the Lewis electron dot diagram for ammonia (NH3), we need to consider the following key points:<\/p>\n\n\n\n

    \n
  1. Electron configuration and bonding:<\/strong>\n
      \n
    • Nitrogen (N) is in Group 15 of the periodic table, meaning it has 5 valence electrons. Hydrogen (H) is in Group 1, so each hydrogen atom has 1 valence electron.<\/li>\n\n\n\n
    • The nitrogen atom will form three covalent bonds with three hydrogen atoms, sharing one electron from each hydrogen atom. This results in three single bonds.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • Lone pairs:<\/strong>\n
        \n
      • After forming the three bonds, nitrogen will have two remaining valence electrons, which cannot participate in bonding. These two electrons will form a lone pair on the nitrogen atom.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
      • Electron dot diagram:<\/strong>\n
          \n
        • The nitrogen atom will be at the center with three single bonds (each represented by a line) connecting it to the three hydrogen atoms. Nitrogen will also have one lone pair of electrons, which can be represented as two dots adjacent to the nitrogen symbol.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n

          Breakdown of the options:<\/h3>\n\n\n\n
            \n
          • Option a<\/strong>: Incorrect. While ammonia does contain three covalent bonds, nitrogen does have a lone pair of electrons, not none.<\/li>\n\n\n\n
          • Option b<\/strong>: Correct. Ammonia has three covalent bonds and one lone pair on nitrogen.<\/li>\n\n\n\n
          • Option c<\/strong>: Incorrect. Ammonia does not contain ions; it is a neutral molecule. The bonding is covalent, not ionic.<\/li>\n\n\n\n
          • Option d<\/strong>: Incorrect. Ammonia does not consist of ions. The nitrogen and hydrogen atoms are covalently bonded, not ionically.<\/li>\n<\/ul>\n\n\n\n

            In summary:<\/h3>\n\n\n\n

            The structure of ammonia consists of a nitrogen atom bonded to three hydrogen atoms with one lone pair of electrons on nitrogen. This gives ammonia its characteristic trigonal pyramidal shape, with nitrogen at the apex of the pyramid and the three hydrogen atoms at the base.<\/p>\n\n\n\n

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

            Draw the Lewis electron dot diagram for ammonia (NH3) on a sheet of scrap paper. You may consult the periodic table on Zoom to draw your diagram. Which of the following is true regarding the Lewis diagram for ammonia? (2 points) a. Ammonia contains three covalent bonds – one to each hydrogen atom, and the […]<\/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-263914","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/263914","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=263914"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/263914\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=263914"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=263914"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=263914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}