{"id":242728,"date":"2025-07-04T08:58:11","date_gmt":"2025-07-04T08:58:11","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=242728"},"modified":"2025-07-04T08:58:13","modified_gmt":"2025-07-04T08:58:13","slug":"write-out-the-electron-configuration-for-krypton","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/04\/write-out-the-electron-configuration-for-krypton\/","title":{"rendered":"Write out the electron configuration for Krypton."},"content":{"rendered":"\n<p>Write out the electron configuration for Krypton. Indicate the valence electrons<\/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>The electron configuration for Krypton (Kr), which has an atomic number of 36, 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\u2076<\/strong><\/p>\n\n\n\n<p>To break this down:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1s\u00b2<\/strong>: This shows that there are two electrons in the first shell&#8217;s s-orbital.<\/li>\n\n\n\n<li><strong>2s\u00b2 2p\u2076<\/strong>: In the second shell, there are two electrons in the s-orbital and six electrons in the p-orbital.<\/li>\n\n\n\n<li><strong>3s\u00b2 3p\u2076<\/strong>: The third shell has two electrons in the s-orbital and six electrons in the p-orbital.<\/li>\n\n\n\n<li><strong>4s\u00b2<\/strong>: The fourth shell starts with two electrons in the s-orbital.<\/li>\n\n\n\n<li><strong>3d\u00b9\u2070<\/strong>: After filling the 4s orbital, the 3d-orbital gets ten electrons.<\/li>\n\n\n\n<li><strong>4p\u2076<\/strong>: Finally, the 4p-orbital is filled with six electrons.<\/li>\n<\/ol>\n\n\n\n<p>This gives Krypton a full electron configuration with 36 electrons total. Now, to identify the <strong>valence electrons<\/strong>, we focus on the outermost shell. For Krypton, the outermost shell is the fourth shell, which contains:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>4s\u00b2<\/strong> (2 electrons)<\/li>\n\n\n\n<li><strong>4p\u2076<\/strong> (6 electrons)<\/li>\n<\/ul>\n\n\n\n<p>So, Krypton has <strong>8 valence electrons<\/strong> in its outermost shell.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>Valence electrons are the electrons located in the outermost energy level (or shell) of an atom, which are involved in chemical bonding. Krypton, being a noble gas, has a full outer shell, which makes it stable and generally unreactive. Its valence electrons (8 in total) make it chemically inert, as it doesn&#8217;t need to gain, lose, or share electrons to achieve a stable configuration. This is characteristic of the noble gases in Group 18 of the periodic table, all of which have a full outer shell.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-264.jpeg\" alt=\"\" class=\"wp-image-242735\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Write out the electron configuration for Krypton. Indicate the valence electrons The Correct Answer and Explanation is: The electron configuration for Krypton (Kr), which has an atomic number of 36, can be written as follows: 1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b2 3d\u00b9\u2070 4p\u2076 To break this down: This gives Krypton a full electron configuration with [&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-242728","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/242728","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=242728"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/242728\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=242728"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=242728"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=242728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}