{"id":208788,"date":"2025-04-28T06:16:16","date_gmt":"2025-04-28T06:16:16","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=208788"},"modified":"2025-04-28T06:16:19","modified_gmt":"2025-04-28T06:16:19","slug":"how-many-valence-electrons-does-an-atom-of-gallium-have","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/04\/28\/how-many-valence-electrons-does-an-atom-of-gallium-have\/","title":{"rendered":"How many valence electrons does an atom of gallium have"},"content":{"rendered":"\n<p>How many valence electrons does an atom of gallium have?<\/p>\n\n\n\n<p> A) 1 <\/p>\n\n\n\n<p>B) 2 <\/p>\n\n\n\n<p>C) 3<\/p>\n\n\n\n<p> D) 4<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The correct answer is <strong>C) 3<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>Valence electrons are the electrons in the outermost electron shell of an atom that participate in chemical bonding. The number of valence electrons is crucial for determining how an element reacts chemically with others.<\/p>\n\n\n\n<p>Gallium (Ga) is a chemical element with the atomic number 31. This means that a neutral gallium atom has 31 electrons. To determine the number of valence electrons, we need to understand how these electrons are arranged in the atom\u2019s electron shells.<\/p>\n\n\n\n<p>The electron configuration for gallium can be written as follows:<\/p>\n\n\n\n<p><strong>1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b2 3d\u00b9\u2070 4p\u00b9<\/strong><\/p>\n\n\n\n<p>Breaking it down:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076<\/strong> are the inner electron shells, filling the first three energy levels.<\/li>\n\n\n\n<li>The <strong>4s\u00b2 3d\u00b9\u2070 4p\u00b9<\/strong> are the outermost shells, located in the 4th energy level.<\/li>\n<\/ul>\n\n\n\n<p>The outermost shell, in this case, is the 4th energy level, which contains <strong>2 electrons in the 4s orbital<\/strong> and <strong>1 electron in the 4p orbital<\/strong>, making a total of <strong>3 valence electrons<\/strong>.<\/p>\n\n\n\n<p>Because gallium is in Group 13 of the periodic table, which is also known as the boron group, all elements in this group have <strong>3 valence electrons<\/strong>. This is consistent with the electron configuration and the periodic table trend that elements in the same group tend to have similar chemical properties, particularly in their valence electron count.<\/p>\n\n\n\n<p>These three valence electrons are what gallium can use in chemical bonding. When gallium forms compounds, it typically donates or shares these electrons in reactions, following the typical trends for metals in Group 13, such as the formation of +3 ions in ionic compounds.<\/p>\n\n\n\n<p>Thus, <strong>gallium has 3 valence electrons<\/strong>, and the correct answer is <strong>C) 3<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>How many valence electrons does an atom of gallium have? A) 1 B) 2 C) 3 D) 4 The correct answer and explanation is : The correct answer is C) 3. Explanation: Valence electrons are the electrons in the outermost electron shell of an atom that participate in chemical bonding. The number of valence electrons [&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-208788","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/208788","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=208788"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/208788\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=208788"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=208788"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=208788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}