{"id":163589,"date":"2024-11-09T03:34:34","date_gmt":"2024-11-09T03:34:34","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=163589"},"modified":"2024-11-09T03:34:36","modified_gmt":"2024-11-09T03:34:36","slug":"which-of-the-following-elements-has-the-fewest-valence-electrons","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/11\/09\/which-of-the-following-elements-has-the-fewest-valence-electrons\/","title":{"rendered":"Which of the following elements has the fewest valence electrons"},"content":{"rendered":"\n<p>Which of the following elements has the fewest valence electrons?<br>beryllium<br>boron<br>carbon<br>lithium<\/p>\n\n\n\n<p><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<p>The correct answer is <strong>lithium<\/strong>.<\/p>\n\n\n\n<p>Lithium has the fewest valence electrons among the listed elements. It has <strong>one valence electron<\/strong> in its outermost shell, while the others have more. Here\u2019s how each element compares:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Lithium (Li)<\/strong>: Lithium has an atomic number of 3, meaning it has three electrons. Its electron configuration is ( 1s^2 \\, 2s^1 ), so it has one electron in its outermost (valence) shell.<\/li>\n\n\n\n<li><strong>Beryllium (Be)<\/strong>: Beryllium has an atomic number of 4, with an electron configuration of ( 1s^2 \\, 2s^2 ). It has two electrons in its outer shell, making it a bit more stable and less reactive than lithium, but it still has two valence electrons.<\/li>\n\n\n\n<li><strong>Boron (B)<\/strong>: Boron\u2019s atomic number is 5, so its electron configuration is ( 1s^2 \\, 2s^2 \\, 2p^1 ). This gives it three electrons in its outermost shell (two in the 2s orbital and one in the 2p orbital), so it has three valence electrons.<\/li>\n\n\n\n<li><strong>Carbon (C)<\/strong>: Carbon has an atomic number of 6, with an electron configuration of ( 1s^2 \\, 2s^2 \\, 2p^2 ), meaning it has four electrons in its outer shell.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation of Valence Electrons<\/h3>\n\n\n\n<p>The term <strong>valence electrons<\/strong> refers to the electrons in the outermost shell of an atom, which are the electrons available for bonding. The number of valence electrons generally determines how an element will react chemically with others. Elements in the same group (column) of the periodic table have the same number of valence electrons, leading to similar chemical properties.<\/p>\n\n\n\n<p>Since lithium has only one valence electron, it is classified as an alkali metal, which is a highly reactive group. Lithium is especially reactive because it seeks to lose that single electron to achieve a stable, noble-gas electron configuration similar to helium. Other elements listed\u2014beryllium, boron, and carbon\u2014have more valence electrons, so they do not seek to lose or gain electrons as readily as lithium does.<\/p>\n\n\n\n<p>In summary, lithium has the fewest valence electrons (just one), making it the correct answer.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Which of the following elements has the fewest valence electrons?berylliumboroncarbonlithium The Correct Answer and Explanation is : The correct answer is lithium. Lithium has the fewest valence electrons among the listed elements. It has one valence electron in its outermost shell, while the others have more. Here\u2019s how each element compares: Explanation of Valence Electrons [&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-163589","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/163589","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=163589"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/163589\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=163589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=163589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=163589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}