{"id":165701,"date":"2024-11-12T16:55:37","date_gmt":"2024-11-12T16:55:37","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=165701"},"modified":"2024-11-12T16:55:40","modified_gmt":"2024-11-12T16:55:40","slug":"potassium-k-1s22s22p63s23p64s1-core-electrons-and-valence-electrons","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/11\/12\/potassium-k-1s22s22p63s23p64s1-core-electrons-and-valence-electrons\/","title":{"rendered":"Potassium (K): 1s22s22p63s23p64s1 core electrons and valence electrons"},"content":{"rendered":"\n<p>Potassium (K): 1s22s22p63s23p64s1 core electrons and 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-6-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>To determine the core electrons and valence electrons of potassium (K), we need to analyze its electron configuration, which is:<\/p>\n\n\n\n<p><strong>1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b9<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Core Electrons:<\/h3>\n\n\n\n<p>Core electrons are those electrons that are in the inner energy levels of the atom, not involved in bonding or reactions, and they are typically in the inner shells closest to the nucleus. These electrons are the ones filling the atomic orbitals from the first shell up to the one just before the outermost shell (valence shell).<\/p>\n\n\n\n<p>For potassium (K), the electron configuration shows that it has:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>1s\u00b2<\/strong>: Two electrons in the first shell.<\/li>\n\n\n\n<li><strong>2s\u00b2 2p\u2076<\/strong>: Eight electrons in the second shell.<\/li>\n\n\n\n<li><strong>3s\u00b2 3p\u2076<\/strong>: Eight electrons in the third shell.<\/li>\n<\/ul>\n\n\n\n<p>These electrons (1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076) are considered <strong>core electrons<\/strong> because they are in the inner shells and are not involved in chemical bonding. <strong>Potassium has 18 core electrons<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Valence Electrons:<\/h3>\n\n\n\n<p>Valence electrons are the outermost electrons in an atom, typically in the highest energy level or shell, and they are the ones that participate in chemical reactions and bonding. For potassium, its electron configuration ends with <strong>4s\u00b9<\/strong>, which indicates that the only electron in the fourth shell (the outermost shell) is the valence electron.<\/p>\n\n\n\n<p>Therefore, <strong>potassium has 1 valence electron<\/strong> in the 4s orbital.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Summary:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Core electrons<\/strong>: 18 (electrons in the 1s, 2s, 2p, 3s, and 3p orbitals)<\/li>\n\n\n\n<li><strong>Valence electron<\/strong>: 1 (in the 4s orbital)<\/li>\n<\/ul>\n\n\n\n<p>This electron configuration explains potassium\u2019s chemical behavior. Potassium is highly reactive, particularly because it has a single valence electron that can be easily lost to form a positively charged ion (K\u207a), leading to a stable electron configuration similar to that of noble gases.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Potassium (K): 1s22s22p63s23p64s1 core electrons and valence electrons The Correct Answer and Explanation is: To determine the core electrons and valence electrons of potassium (K), we need to analyze its electron configuration, which is: 1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b9 Core Electrons: Core electrons are those electrons that are in the inner energy levels of [&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-165701","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/165701","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=165701"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/165701\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=165701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=165701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=165701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}