{"id":227963,"date":"2025-06-06T16:18:57","date_gmt":"2025-06-06T16:18:57","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=227963"},"modified":"2025-06-06T16:19:00","modified_gmt":"2025-06-06T16:19:00","slug":"draw-the-correct-three-dimensional-lewis-structure-of-fcn-central-atom-carbon","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/06\/draw-the-correct-three-dimensional-lewis-structure-of-fcn-central-atom-carbon\/","title":{"rendered":"Draw the correct three-dimensional Lewis structure of FCN (Central atom carbon"},"content":{"rendered":"\n<p>Draw the correct three-dimensional Lewis structure of FCN (Central atom carbon). Must show all lone pairs with dots and bonded atoms with lines. Then answer the following questions: A. Electron pair geometry: B. Molecular geometry: C. Bond angle: D. Show polarity of bonds by using delta notations (or partial charges).<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>Here&#8217;s the <strong>Lewis Structure of FCN (fluorine\u2013carbon\u2013nitrogen)<\/strong> with carbon as the central atom:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">rCopyEdit<code>      :F:\n       |\n  .. :F\u2013C\u2261N:\n           ..\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation of Structure:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Carbon (C)<\/strong> is the central atom.<\/li>\n\n\n\n<li><strong>Fluorine (F)<\/strong> is bonded to carbon via a single bond.<\/li>\n\n\n\n<li><strong>Nitrogen (N)<\/strong> is bonded to carbon via a triple bond.<\/li>\n\n\n\n<li>Fluorine has <strong>three lone pairs<\/strong>.<\/li>\n\n\n\n<li>Nitrogen has <strong>one lone pair<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">A. <strong>Electron Pair Geometry<\/strong>:<\/h3>\n\n\n\n<p><strong>Linear<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B. <strong>Molecular Geometry<\/strong>:<\/h3>\n\n\n\n<p><strong>Linear<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C. <strong>Bond Angle<\/strong>:<\/h3>\n\n\n\n<p><strong>180\u00b0<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">D. <strong>Polarity of Bonds (with \u03b4 Notation)<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>F\u2013C bond<\/strong>: \u03b4\u207bF \u2013 \u03b4\u207aC<\/li>\n\n\n\n<li><strong>C\u2261N bond<\/strong>: \u03b4\u207aC \u2261 \u03b4\u207bN<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"> Explanation:<\/h3>\n\n\n\n<p>The molecule <strong>FCN<\/strong>, also known as <strong>fluoroisocyanide<\/strong>, consists of fluorine (F), carbon (C), and nitrogen (N). In this linear triatomic molecule, carbon is the central atom, forming two bonds: a single bond with fluorine and a triple bond with nitrogen.<\/p>\n\n\n\n<p><strong>Step 1: Drawing the Lewis Structure<\/strong><br>Carbon, having four valence electrons, forms a <strong>single bond with fluorine<\/strong> and a <strong>triple bond with nitrogen<\/strong>, using up all its valence electrons. Fluorine, with seven valence electrons, shares one with carbon and retains <strong>three lone pairs<\/strong>. Nitrogen, with five valence electrons, forms three bonds with carbon and retains <strong>one lone pair<\/strong>. This satisfies the octet rule for all atoms involved.<\/p>\n\n\n\n<p><strong>Step 2: Geometry<\/strong><br>There are two regions of electron density (one single bond and one triple bond) around the central carbon. According to VSEPR theory, two regions of electron density arrange themselves in a <strong>linear<\/strong> geometry to minimize repulsion. Hence, both the <strong>electron pair geometry<\/strong> and <strong>molecular geometry<\/strong> are <strong>linear<\/strong>, with a bond angle of <strong>180\u00b0<\/strong>.<\/p>\n\n\n\n<p><strong>Step 3: Polarity<\/strong><br>The <strong>C\u2013F bond<\/strong> is polar due to fluorine&#8217;s high electronegativity (\u03b4\u207b on F, \u03b4\u207a on C). The <strong>C\u2261N bond<\/strong> is also polar, with nitrogen being more electronegative (\u03b4\u207b on N, \u03b4\u207a on C). Since both bonds pull electron density in opposite directions, the molecule could appear symmetrical, but the differing bond types and electronegativities make <strong>FCN a polar molecule<\/strong> overall.<\/p>\n\n\n\n<p>Thus, FCN is a linear, polar molecule with distinct bond polarity due to electronegativity differences and bond types.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner4-555.jpeg\" alt=\"\" class=\"wp-image-227964\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Draw the correct three-dimensional Lewis structure of FCN (Central atom carbon). Must show all lone pairs with dots and bonded atoms with lines. Then answer the following questions: A. Electron pair geometry: B. Molecular geometry: C. Bond angle: D. Show polarity of bonds by using delta notations (or partial charges). The Correct Answer and Explanation [&hellip;]<\/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-227963","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/227963","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=227963"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/227963\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=227963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=227963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=227963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}