{"id":202852,"date":"2025-03-18T07:52:10","date_gmt":"2025-03-18T07:52:10","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=202852"},"modified":"2025-03-18T07:52:12","modified_gmt":"2025-03-18T07:52:12","slug":"give-one-permissible-set-of-four-quantum-numbers-for-each-of-the-outermost-electrons","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/18\/give-one-permissible-set-of-four-quantum-numbers-for-each-of-the-outermost-electrons\/","title":{"rendered":"Give One Permissible Set Of Four Quantum Numbers For Each Of The Outermost Electrons"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Give One Permissible Set Of Four Quantum Numbers For Each Of The Outermost Electrons In A Single As Atom When It Is In Its Ground State.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><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<h3 class=\"wp-block-heading\">Answer:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For a single arsenic (As) atom in its ground state, the outermost electron is located in the <strong>4p<\/strong> orbital. The quantum numbers for one of these electrons can be:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Principal quantum number (n):<\/strong> 4<\/li>\n\n\n\n<li><strong>Azimuthal quantum number (l):<\/strong> 1 (since it is in a <strong>p<\/strong> orbital)<\/li>\n\n\n\n<li><strong>Magnetic quantum number (m\u2097):<\/strong> -1, 0, or +1 (any of the three possible orientations of the <strong>p<\/strong> orbital)<\/li>\n\n\n\n<li><strong>Spin quantum number (m\u209b):<\/strong> +\u00bd or -\u00bd (since electrons can have either spin up or spin down)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A valid set of quantum numbers for one of the outermost electrons in arsenic:<br><strong>(4, 1, -1, +\u00bd)<\/strong><\/p>\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<ol class=\"wp-block-list\">\n<li><strong>Understanding the electron configuration of As (Z = 33):<\/strong><br>The full ground-state electron configuration of arsenic is:<br><strong>1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b2 3d\u00b9\u2070 4p\u00b3<\/strong><br>The outermost electrons are in the <strong>4p<\/strong> subshell, which contains three electrons.<\/li>\n\n\n\n<li><strong>Defining quantum numbers:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Principal quantum number (n):<\/strong><br>It describes the energy level of the electron. Since the outermost electron is in the <strong>4p<\/strong> orbital, <strong>n = 4<\/strong>.<\/li>\n\n\n\n<li><strong>Azimuthal quantum number (l):<\/strong><br>It defines the shape of the orbital. For a <strong>p<\/strong> orbital, <strong>l = 1<\/strong>.<\/li>\n\n\n\n<li><strong>Magnetic quantum number (m\u2097):<\/strong><br>It determines the specific orbital within the subshell. For <strong>p orbitals (l = 1)<\/strong>, possible values are <strong>-1, 0, +1<\/strong>.<\/li>\n\n\n\n<li><strong>Spin quantum number (m\u209b):<\/strong><br>It describes the electron&#8217;s spin, which can be either <strong>+\u00bd (spin-up) or -\u00bd (spin-down)<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Since arsenic has three electrons in the <strong>4p<\/strong> orbital, each electron will occupy a separate <strong>p<\/strong> orbital (Hund\u2019s Rule). One valid set is <strong>(4, 1, -1, +\u00bd)<\/strong>, but other valid combinations exist.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Give One Permissible Set Of Four Quantum Numbers For Each Of The Outermost Electrons In A Single As Atom When It Is In Its Ground State. The correct answer and explanation is : Answer: For a single arsenic (As) atom in its ground state, the outermost electron is located in the 4p orbital. The quantum [&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-202852","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/202852","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=202852"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/202852\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=202852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=202852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=202852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}