{"id":244365,"date":"2025-07-05T05:03:21","date_gmt":"2025-07-05T05:03:21","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=244365"},"modified":"2025-07-05T05:03:23","modified_gmt":"2025-07-05T05:03:23","slug":"draw-the-lewis-structure-for-thiosulfate-s2o32-with-minimized-formal-charges","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/05\/draw-the-lewis-structure-for-thiosulfate-s2o32-with-minimized-formal-charges\/","title":{"rendered":"Draw the Lewis structure for thiosulfate (S2O3^2-) with minimized formal charges"},"content":{"rendered":"\n<p>Draw the Lewis structure for thiosulfate (S2O3^2-) with minimized formal charges. How many TOTAL likely resonance structures exist for S2O3^2-? Hint: In this case, it is more stable (preferred) to place the negative charge on the larger atom. B) 2 E) 5 Click to view structure Tap here to pull up additional resources.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/image-166.png\" alt=\"\" class=\"wp-image-244366\"\/><\/figure>\n\n\n\n<p><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<p>The Lewis structure for thiosulfate (S2O3^2-) involves sulfur (S) and oxygen (O) atoms. Here&#8217;s how to approach drawing the structure and understanding the resonance:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Count the valence electrons:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Sulfur (S) is in group 16 of the periodic table and has 6 valence electrons. For two sulfur atoms, that&#8217;s 6 x 2 = 12 electrons.<\/li>\n\n\n\n<li>Oxygen (O) is also in group 16 and has 6 valence electrons, but there are three oxygens in this molecule. So, 6 x 3 = 18 electrons.<\/li>\n\n\n\n<li>The 2- charge adds 2 more electrons to the total count.<\/li>\n\n\n\n<li>Total valence electrons = 12 (from sulfur) + 18 (from oxygen) + 2 (from the charge) = 32 electrons.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Determine the skeleton structure:<\/strong>\n<ul class=\"wp-block-list\">\n<li>One sulfur atom is bonded to the other sulfur atom and to two oxygen atoms. The third oxygen is typically single-bonded to one sulfur.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Distribute the electrons:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Assign electron pairs to satisfy the octet rule for oxygen atoms.<\/li>\n\n\n\n<li>Place extra electrons on the sulfur atoms to complete their valence shells.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Consider resonance:<\/strong>\n<ul class=\"wp-block-list\">\n<li>There are two primary resonance structures, as the negative charges are more favorably placed on the oxygen atoms due to their higher electronegativity compared to sulfur.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>The <strong>correct answer is B) 2<\/strong>, since there are 2 likely resonance structures where the negative charges are placed on the oxygen atoms in different ways.<\/p>\n\n\n\n<p>These resonance structures involve shifting double bonds between sulfur and oxygen and alternating where the negative charges reside, minimizing formal charges across the molecule.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-439.jpeg\" alt=\"\" class=\"wp-image-244367\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Draw the Lewis structure for thiosulfate (S2O3^2-) with minimized formal charges. How many TOTAL likely resonance structures exist for S2O3^2-? Hint: In this case, it is more stable (preferred) to place the negative charge on the larger atom. B) 2 E) 5 Click to view structure Tap here to pull up additional resources. The Correct [&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-244365","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/244365","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=244365"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/244365\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=244365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=244365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=244365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}