{"id":218162,"date":"2025-05-23T09:51:34","date_gmt":"2025-05-23T09:51:34","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=218162"},"modified":"2025-05-23T09:51:37","modified_gmt":"2025-05-23T09:51:37","slug":"si-br-ionic-covalent-si-br-sibr-silicon-bromide-sibr3-silicon-tribromide-sibr4-silicon-tetrabromide-siqbr-silicon-tetrabromide-this-question-has-multiple-parts","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/23\/si-br-ionic-covalent-si-br-sibr-silicon-bromide-sibr3-silicon-tribromide-sibr4-silicon-tetrabromide-siqbr-silicon-tetrabromide-this-question-has-multiple-parts\/","title":{"rendered":"Si, Br ionic covalent Si, Br SiBr, silicon bromide SiBr3, silicon tribromide SiBr4, silicon tetrabromide SiqBr, silicon tetrabromide This question has multiple parts."},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Si, Br ionic covalent Si, Br SiBr, silicon bromide SiBr3, silicon tribromide SiBr4, silicon tetrabromide SiqBr, silicon tetrabromide This question has multiple parts. Work all the parts to get the most points. For each of the following pairs of elements, state whether the binary compound formed is likely to be ionic or covalent. Also, choose the formula and name of the compound.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na, S ionic covalent Na, S Na2S, sodium sulfide NaS2, sodium nitrate Na2S, sodium sulfate NaS, sodium sulphide<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Correct Answer:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Type of Bond:<\/strong> <strong>Ionic<\/strong><\/li>\n\n\n\n<li><strong>Chemical Formula and Name:<\/strong> <strong>Na\u2082S, sodium sulfide<\/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\"><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">When determining whether a binary compound is <strong>ionic<\/strong> or <strong>covalent<\/strong>, the key factor lies in the <strong>types of elements involved<\/strong>\u2014specifically, whether the elements are metals or nonmetals:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ionic bonds<\/strong> typically form between a <strong>metal and a nonmetal<\/strong>, where electrons are <strong>transferred<\/strong> from the metal to the nonmetal.<\/li>\n\n\n\n<li><strong>Covalent bonds<\/strong> usually form between <strong>two nonmetals<\/strong>, where electrons are <strong>shared<\/strong> between atoms.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In the given pair\u2014<strong>Na (sodium)<\/strong> and <strong>S (sulfur)<\/strong>\u2014we have:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sodium (Na)<\/strong>: An alkali metal in Group 1 of the periodic table. It has <strong>one valence electron<\/strong> and a strong tendency to <strong>lose<\/strong> that electron, forming a <strong>+1 cation (Na\u207a)<\/strong>.<\/li>\n\n\n\n<li><strong>Sulfur (S)<\/strong>: A nonmetal in Group 16, with <strong>six valence electrons<\/strong>. It needs <strong>two more electrons<\/strong> to complete its octet and tends to form a <strong>\u20132 anion (S\u00b2\u207b)<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">When sodium and sulfur react, <strong>each sulfur atom can accept two electrons<\/strong>, meaning <strong>two sodium atoms<\/strong> are required to <strong>donate one electron each<\/strong>. This results in the compound:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Na\u2082S<\/strong>, composed of <strong>two Na\u207a ions<\/strong> and <strong>one S\u00b2\u207b ion<\/strong>, making the compound <strong>electrically neutral<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Because this compound involves the <strong>transfer of electrons<\/strong> from metal to nonmetal, it is <strong>ionic<\/strong> in nature.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Now let&#8217;s evaluate the name:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The cation (Na\u207a) is <strong>sodium<\/strong>.<\/li>\n\n\n\n<li>The anion (S\u00b2\u207b) is derived from sulfur, so it becomes <strong>sulfide<\/strong> in naming conventions.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore, the correct <strong>name of the compound<\/strong> is <strong>sodium sulfide<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Incorrect Options:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>NaS2<\/strong> is chemically incorrect\u2014sodium doesn\u2019t form a +2 ion to balance two sulfurs.<\/li>\n\n\n\n<li><strong>NaS, sodium sulphide<\/strong> is incorrect because it doesn\u2019t maintain charge balance (Na\u207a and S\u00b2\u207b).<\/li>\n\n\n\n<li><strong>Na\u2082S, sodium sulfate<\/strong> is incorrect\u2014sulfate refers to SO\u2084\u00b2\u207b, not S\u00b2\u207b.<\/li>\n\n\n\n<li>The spelling &#8220;sulphide&#8221; is a British variant; &#8220;sulfide&#8221; is more widely accepted in scientific contexts, especially in the U.S.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Summary:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bond Type<\/strong>: Ionic<\/li>\n\n\n\n<li><strong>Correct Formula<\/strong>: Na\u2082S<\/li>\n\n\n\n<li><strong>Correct Name<\/strong>: Sodium sulfide<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/05\/image-162.png\" alt=\"\" class=\"wp-image-218163\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Si, Br ionic covalent Si, Br SiBr, silicon bromide SiBr3, silicon tribromide SiBr4, silicon tetrabromide SiqBr, silicon tetrabromide This question has multiple parts. Work all the parts to get the most points. For each of the following pairs of elements, state whether the binary compound formed is likely to be ionic or covalent. Also, choose [&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-218162","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/218162","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=218162"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/218162\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=218162"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=218162"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=218162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}