{"id":238022,"date":"2025-06-17T19:26:49","date_gmt":"2025-06-17T19:26:49","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=238022"},"modified":"2025-06-17T19:26:51","modified_gmt":"2025-06-17T19:26:51","slug":"what-is-the-ground-state-electron-configuration-for-the-mn4-ion-and-is-it-paramagnetic-or-diamagnetic","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/17\/what-is-the-ground-state-electron-configuration-for-the-mn4-ion-and-is-it-paramagnetic-or-diamagnetic\/","title":{"rendered":"What is the ground-state electron configuration for the Mn4+ ion and is it paramagnetic or diamagnetic"},"content":{"rendered":"\n<p>What is the ground-state electron configuration for the Mn4+ ion and is it paramagnetic or diamagnetic? Group of answer choices [Ar] 3d2, paramagnetic [Kr] 5s2, paramagnetic [Ar] 3d3, paramagnetic [Ar] 4s2 3d5, paramagnetic [Ar] 3d3, diamagnetic [Ar] 3d2, diamagnetic [Ar] 4s2 3d5, diamagnetic<\/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>[Ar] 3d3, paramagnetic<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<p>Manganese (Mn) has an atomic number of 25, which means a neutral manganese atom has 25 electrons. To determine its ground-state electron configuration, we follow the order of electron filling based on energy levels.<\/p>\n\n\n\n<p>The full ground-state electron configuration of neutral Mn is:<\/p>\n\n\n\n<p><strong>1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b2 3d\u2075<\/strong><\/p>\n\n\n\n<p>This can be abbreviated using the noble gas argon (Ar), whose electron configuration ends at 3p\u2076. So we write:<\/p>\n\n\n\n<p><strong>[Ar] 4s\u00b2 3d\u2075<\/strong><\/p>\n\n\n\n<p>Now, we consider the Mn\u2074\u207a ion. This means the atom has lost four electrons.<\/p>\n\n\n\n<p>Electrons are removed first from the outermost shell, which includes the 4s orbital and then the 3d orbital.<\/p>\n\n\n\n<p>Mn has:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2 electrons in 4s<\/li>\n\n\n\n<li>5 electrons in 3d<\/li>\n<\/ul>\n\n\n\n<p>Removing four electrons total:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>First remove 2 electrons from 4s \u2192 [Ar] 3d\u2075<\/li>\n\n\n\n<li>Then remove 2 electrons from 3d \u2192 [Ar] 3d\u00b3<\/li>\n<\/ul>\n\n\n\n<p>So the configuration for Mn\u2074\u207a is:<\/p>\n\n\n\n<p><strong>[Ar] 3d\u00b3<\/strong><\/p>\n\n\n\n<p>To determine whether the ion is paramagnetic or diamagnetic, we need to consider unpaired electrons.<\/p>\n\n\n\n<p>A 3d\u00b3 configuration has three electrons in the d orbitals, each occupying a separate orbital due to Hund&#8217;s rule. This means there are <strong>three unpaired electrons<\/strong>, making the ion <strong>paramagnetic<\/strong> because paramagnetism arises from the presence of unpaired electrons which interact with magnetic fields.<\/p>\n\n\n\n<p>In contrast, diamagnetic substances have all electrons paired and do not exhibit magnetic behavior.<\/p>\n\n\n\n<p>Therefore, Mn\u2074\u207a with the configuration <strong>[Ar] 3d\u00b3<\/strong> is <strong>paramagnetic<\/strong> due to the presence of unpaired electrons in the d orbitals.<\/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-banner8-968.jpeg\" alt=\"\" class=\"wp-image-238023\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What is the ground-state electron configuration for the Mn4+ ion and is it paramagnetic or diamagnetic? Group of answer choices [Ar] 3d2, paramagnetic [Kr] 5s2, paramagnetic [Ar] 3d3, paramagnetic [Ar] 4s2 3d5, paramagnetic [Ar] 3d3, diamagnetic [Ar] 3d2, diamagnetic [Ar] 4s2 3d5, diamagnetic The Correct Answer and Explanation is: Correct Answer:[Ar] 3d3, paramagnetic Explanation: Manganese [&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-238022","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/238022","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=238022"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/238022\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=238022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=238022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=238022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}