{"id":229920,"date":"2025-06-08T16:08:36","date_gmt":"2025-06-08T16:08:36","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=229920"},"modified":"2025-06-08T16:08:38","modified_gmt":"2025-06-08T16:08:38","slug":"write-3-net-nb3-the-electron-has-a-total-of-8-unpaired-electron-configuration","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/08\/write-3-net-nb3-the-electron-has-a-total-of-8-unpaired-electron-configuration\/","title":{"rendered":"Write 3 Net Nb3+ the electron has a total of 8 unpaired electron configuration"},"content":{"rendered":"\n<p>Write 3 Net Nb3+ the electron has a total of 8 unpaired electron configuration. H Ml of Nb3 and of Nb Nb3+ the and valence same the determine electrons that of the which number the following electrons in Sr statements EALSE:<\/p>\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><strong>Correct Answer:<\/strong><br><strong>FALSE Statement:<\/strong> <em>&#8220;Nb and Nb\u00b3\u207a have the same number of valence electrons.&#8221;<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Explanation <\/strong><\/h3>\n\n\n\n<p>To analyze this question properly, we need to understand the electronic configurations of <strong>Niobium (Nb)<\/strong> and its +3 ion <strong>Nb\u00b3\u207a<\/strong>, and compare their <strong>valence electrons<\/strong> and <strong>unpaired electrons<\/strong>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. <strong>Electron Configuration of Nb (Z = 41):<\/strong><\/h4>\n\n\n\n<p>Niobium has an atomic number of 41, so the ground state electron configuration is:<\/p>\n\n\n\n<p><strong>Nb:<\/strong> [Kr] 4d\u2074 5s\u00b9<br>This is due to the stability gained by a half-filled d-orbital (similar to Cr and Mo).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Total <strong>valence electrons<\/strong>: 5 (4d\u2074 5s\u00b9)<\/li>\n\n\n\n<li><strong>Unpaired electrons<\/strong>: In the 4d\u2074 5s\u00b9 configuration, there are 5 electrons in outer shells \u2014 likely <strong>4 unpaired<\/strong> in the 4d and 1 in 5s \u2192 <strong>total 5 unpaired<\/strong> electrons.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. <strong>Electron Configuration of Nb\u00b3\u207a:<\/strong><\/h4>\n\n\n\n<p>When forming the Nb\u00b3\u207a ion, we remove 3 electrons:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>First from the <strong>5s orbital (1 electron)<\/strong><\/li>\n\n\n\n<li>Then <strong>2 electrons from 4d orbital<\/strong><\/li>\n<\/ul>\n\n\n\n<p>So the configuration becomes:<\/p>\n\n\n\n<p><strong>Nb\u00b3\u207a:<\/strong> [Kr] 4d\u00b2<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Valence electrons<\/strong>: 2 (only in 4d\u00b2)<\/li>\n\n\n\n<li><strong>Unpaired electrons<\/strong>: 2 unpaired electrons in 4d<\/li>\n<\/ul>\n\n\n\n<p>Thus, Nb and Nb\u00b3\u207a <strong>do not have the same number of valence electrons<\/strong>. Nb has <strong>5 valence electrons<\/strong>, while Nb\u00b3\u207a has <strong>2 valence electrons<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">3. <strong>Electron Configuration of Sr (Z = 38):<\/strong><\/h4>\n\n\n\n<p><strong>Sr:<\/strong> [Kr] 5s\u00b2<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Valence electrons: 2<\/li>\n\n\n\n<li>When Sr loses both 5s electrons to become Sr\u00b2\u207a \u2192 [Kr], no valence electrons remain.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">4. <strong>Which configuration has 8 unpaired electrons?<\/strong><\/h4>\n\n\n\n<p>A <strong>neutral atom with 8 unpaired electrons<\/strong> is typically one with a half-filled 4f or 3d orbital, such as <strong>Gd (Gadolinium, Z = 64)<\/strong> or <strong>Mn (Manganese, Z = 25)<\/strong> in 3d\u2075.<\/p>\n\n\n\n<p>But <strong>Nb\u00b3\u207a<\/strong> has only 2 unpaired electrons. So the statement <em>&#8220;Nb\u00b3\u207a has a total of 8 unpaired electrons&#8221;<\/em> is <strong>FALSE<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Final Conclusion:<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u274c <strong>False Statement:<\/strong> &#8220;Nb and Nb\u00b3\u207a have the same number of valence electrons.&#8221;<br>This is incorrect \u2014 Nb has 5 valence electrons, while Nb\u00b3\u207a has only 2.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner6-159.jpeg\" alt=\"\" class=\"wp-image-229921\"\/><\/figure>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Write 3 Net Nb3+ the electron has a total of 8 unpaired electron configuration. H Ml of Nb3 and of Nb Nb3+ the and valence same the determine electrons that of the which number the following electrons in Sr statements EALSE: The Correct Answer and Explanation is: Correct Answer:FALSE Statement: &#8220;Nb and Nb\u00b3\u207a have the [&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-229920","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/229920","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=229920"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/229920\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=229920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=229920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=229920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}