{"id":236138,"date":"2025-06-16T05:14:54","date_gmt":"2025-06-16T05:14:54","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=236138"},"modified":"2025-06-16T05:14:56","modified_gmt":"2025-06-16T05:14:56","slug":"what-is-the-electron-configuration-for-phosphorus-p","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/16\/what-is-the-electron-configuration-for-phosphorus-p\/","title":{"rendered":"What is the electron configuration for phosphorus (P)"},"content":{"rendered":"\n<p>What is the electron configuration for phosphorus (P)? [Ne3s23p4] [He3s23p3] [1s2 2s2 2p6 3s2 3p4] [1s2 2s2 2p6 3s2 3p3]<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p><strong>Correct answer:<\/strong><br><strong>[1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u00b3]<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Explanation:<\/strong><br>Phosphorus (P) is an element in the third period and group 15 of the periodic table, with an atomic number of 15. This means a neutral phosphorus atom contains 15 protons and 15 electrons. To determine the electron configuration, electrons are filled into atomic orbitals in a specific order based on the Aufbau principle, which prioritizes orbitals with lower energy levels.<\/p>\n\n\n\n<p>The first two electrons occupy the <strong>1s<\/strong> orbital, the next two go into the <strong>2s<\/strong> orbital, and the next six fill the <strong>2p<\/strong> orbital, completing the second shell. That accounts for 10 electrons:<br><strong>1s\u00b2 2s\u00b2 2p\u2076<\/strong><\/p>\n\n\n\n<p>The next two electrons fill the <strong>3s<\/strong> orbital, and the remaining three electrons enter the <strong>3p<\/strong> orbital. This completes the configuration for all 15 electrons:<br><strong>1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u00b3<\/strong><\/p>\n\n\n\n<p>This configuration matches the option:<br><strong>[1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u00b3]<\/strong><\/p>\n\n\n\n<p>This arrangement reveals that phosphorus has five valence electrons located in the third shell (3s\u00b2 3p\u00b3). These valence electrons explain the element\u2019s chemical properties, such as its tendency to form three covalent bonds in molecules like phosphine (PH\u2083).<\/p>\n\n\n\n<p>Incorrect choices:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>[Ne 3s\u00b2 3p\u2074]<\/strong> represents sulfur (atomic number 16), not phosphorus.<\/li>\n\n\n\n<li><strong>[He 3s\u00b2 3p\u00b3]<\/strong> is incorrect because helium (He) only accounts for two electrons, whereas phosphorus has 15.<\/li>\n\n\n\n<li><strong>[1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2074]<\/strong> corresponds to sulfur, not phosphorus.<\/li>\n<\/ul>\n\n\n\n<p>Thus, the accurate configuration for phosphorus is <strong>[1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u00b3]<\/strong>.<\/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-banner5-649.jpeg\" alt=\"\" class=\"wp-image-236139\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What is the electron configuration for phosphorus (P)? [Ne3s23p4] [He3s23p3] [1s2 2s2 2p6 3s2 3p4] [1s2 2s2 2p6 3s2 3p3] The Correct Answer and Explanation is: Correct answer:[1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u00b3] Explanation:Phosphorus (P) is an element in the third period and group 15 of the periodic table, with an atomic number of 15. This [&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-236138","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/236138","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=236138"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/236138\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=236138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=236138"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=236138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}