{"id":38748,"date":"2025-06-26T12:37:43","date_gmt":"2025-06-26T12:37:43","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=38748"},"modified":"2025-06-26T12:37:44","modified_gmt":"2025-06-26T12:37:44","slug":"what-is-the-electron-configuration-for-zn","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/what-is-the-electron-configuration-for-zn\/","title":{"rendered":"What is the electron configuration for Zn"},"content":{"rendered":"\n<p>What is the electron configuration for Zn? A) 1s22s22p63s23p63d104s24p6 B) 1s22s22p63s23p64s23d104p1 C) 1s22s22p63s23p53d104s24p1 D) 1s22s22p63s23p64s24d104p1 E) 1s22s22p63s23p64s23d10<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The correct answer is:<\/p>\n\n\n\n<p><strong>E) 1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b2 3d\u00b9\u2070<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>Zinc (Zn) has an atomic number of <strong>30<\/strong>, which means it has <strong>30 electrons<\/strong>. To write the electron configuration, we fill the atomic orbitals following the <strong>Aufbau principle<\/strong>, <strong>Pauli exclusion principle<\/strong>, and <strong>Hund\u2019s rule<\/strong>. The order of orbital filling is based on increasing energy levels, not just the principal quantum number.<\/p>\n\n\n\n<p>Here is the step-by-step filling:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1s\u00b2<\/strong> \u2192 2 electrons<\/li>\n\n\n\n<li><strong>2s\u00b2<\/strong> \u2192 2 electrons<\/li>\n\n\n\n<li><strong>2p\u2076<\/strong> \u2192 6 electrons<\/li>\n\n\n\n<li><strong>3s\u00b2<\/strong> \u2192 2 electrons<\/li>\n\n\n\n<li><strong>3p\u2076<\/strong> \u2192 6 electrons<\/li>\n\n\n\n<li><strong>4s\u00b2<\/strong> \u2192 2 electrons (filled before 3d because 4s is lower in energy at first)<\/li>\n\n\n\n<li><strong>3d\u00b9\u2070<\/strong> \u2192 10 electrons (fully fills the d-subshell)<\/li>\n<\/ol>\n\n\n\n<p>Adding all those gives:<br>2 (1s) + 2 (2s) + 6 (2p) + 2 (3s) + 6 (3p) + 2 (4s) + 10 (3d) = <strong>30 electrons<\/strong><\/p>\n\n\n\n<p>This configuration ends in <strong>4s\u00b2 3d\u00b9\u2070<\/strong>, which is the correct full electron configuration for zinc.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why the other options are incorrect:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A)<\/strong> ends with <strong>4p\u2076<\/strong> which is beyond atomic number 30<\/li>\n\n\n\n<li><strong>B)<\/strong> ends with <strong>4p\u00b9<\/strong>, suggesting atomic number 31 (gallium)<\/li>\n\n\n\n<li><strong>C)<\/strong> has <strong>3p\u2075<\/strong>, which is incorrect for Zn<\/li>\n\n\n\n<li><strong>D)<\/strong> lists <strong>4d\u00b9\u2070<\/strong>, but 4d orbitals are filled later, around atomic number 39 (yttrium)<\/li>\n<\/ul>\n\n\n\n<p>So, <strong>option E<\/strong> is correct because it properly accounts for all 30 electrons and ends with a full 3d subshell after the 4s orbital is filled.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"852\" height=\"1024\" src=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-1057.jpeg\" alt=\"\" class=\"wp-image-38751\" srcset=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-1057.jpeg 852w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-1057-250x300.jpeg 250w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-1057-768x923.jpeg 768w\" sizes=\"auto, (max-width: 852px) 100vw, 852px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What is the electron configuration for Zn? A) 1s22s22p63s23p63d104s24p6 B) 1s22s22p63s23p64s23d104p1 C) 1s22s22p63s23p53d104s24p1 D) 1s22s22p63s23p64s24d104p1 E) 1s22s22p63s23p64s23d10 The Correct Answer and Explanation is: The correct answer is: E) 1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b2 3d\u00b9\u2070 Explanation: Zinc (Zn) has an atomic number of 30, which means it has 30 electrons. To write the electron configuration, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-38748","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/38748","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=38748"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/38748\/revisions"}],"predecessor-version":[{"id":38752,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/38748\/revisions\/38752"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=38748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=38748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=38748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}