{"id":249932,"date":"2025-07-10T06:40:31","date_gmt":"2025-07-10T06:40:31","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=249932"},"modified":"2025-07-10T06:40:34","modified_gmt":"2025-07-10T06:40:34","slug":"what-is-the-charge-on-the-cr-in-the-ionic-compound-cr2o3","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/10\/what-is-the-charge-on-the-cr-in-the-ionic-compound-cr2o3\/","title":{"rendered":"What is the charge on the Cr in the ionic compound Cr2O3"},"content":{"rendered":"\n<p>What is the charge on the Cr in the ionic compound Cr2O3?<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\">The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The charge on chromium (Cr) in the ionic compound Cr\u2082O\u2083 is +3.<\/p>\n\n\n\n<p>Here&#8217;s how to determine this:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Oxygen&#8217;s Charge<\/strong>: In most ionic compounds, oxygen typically has a charge of -2. Since Cr\u2082O\u2083 contains three oxygen atoms, the total charge contributed by the oxygen ions is 3\u00d7\u22122=\u221263 \\times -2 = -6.<\/li>\n\n\n\n<li><strong>Balancing the Charges<\/strong>: The overall compound must be electrically neutral, meaning the total positive charge must balance the total negative charge. Since the oxygen ions contribute -6 in total, the chromium ions must contribute +6 to balance the charge.<\/li>\n\n\n\n<li><strong>Chromium&#8217;s Charge<\/strong>: The compound contains two chromium atoms, so to balance the -6 charge from the oxygen, each chromium atom must have a charge of +3. This is because 2\u00d7+3=+62 \\times +3 = +6, which balances the -6 charge from the oxygen ions.<\/li>\n<\/ol>\n\n\n\n<p>Thus, each chromium ion in Cr\u2082O\u2083 has a charge of +3.<\/p>\n\n\n\n<p>To summarize:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Oxygen is -2.<\/li>\n\n\n\n<li>Two chromium ions must balance the -6 charge from oxygen, so each chromium ion has a charge of +3.<\/li>\n\n\n\n<li>The ionic compound Cr\u2082O\u2083 is electrically neutral, with the total positive charge (+6) balancing the total negative charge (-6).<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>What is the charge on the Cr in the ionic compound Cr2O3? The correct answer and explanation is: The charge on chromium (Cr) in the ionic compound Cr\u2082O\u2083 is +3. Here&#8217;s how to determine this: Thus, each chromium ion in Cr\u2082O\u2083 has a charge of +3. To summarize:<\/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-249932","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/249932","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=249932"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/249932\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=249932"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=249932"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=249932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}