{"id":208809,"date":"2025-04-28T06:32:42","date_gmt":"2025-04-28T06:32:42","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=208809"},"modified":"2025-04-28T06:32:44","modified_gmt":"2025-04-28T06:32:44","slug":"arrange-the-elements-cl-sn-ge-and-se-in-order-of-increasing-atomic-size-list-smallest-first","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/04\/28\/arrange-the-elements-cl-sn-ge-and-se-in-order-of-increasing-atomic-size-list-smallest-first\/","title":{"rendered":"Arrange the elements Cl, Sn, Ge, and Se in order of increasing atomic size (list smallest first)"},"content":{"rendered":"\n<p>Arrange the elements Cl, Sn, Ge, and Se in order of increasing atomic size (list smallest first). A) Sn B) Cl C) Ge D) Se<\/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 order of increasing atomic size (smallest first) for the elements Cl (Chlorine), Sn (Tin), Ge (Germanium), and Se (Selenium) is:<\/p>\n\n\n\n<p><strong>B) Cl &lt; D) Se &lt; C) Ge &lt; A) Sn<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>Atomic size, or atomic radius, refers to the distance from the nucleus to the outermost electrons of an atom. The size of an atom is influenced by two main factors: the <strong>number of electron shells<\/strong> and the <strong>effective nuclear charge<\/strong>.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Chlorine (Cl):<\/strong> Chlorine is located in Group 17 (Halogens) and Period 3 of the periodic table. Chlorine has 3 electron shells, with 17 protons in the nucleus, which exerts a significant pull on the electron cloud. Due to its high nuclear charge (relative to its size), the electrons are more tightly bound to the nucleus, resulting in a smaller atomic radius.<\/li>\n\n\n\n<li><strong>Selenium (Se):<\/strong> Selenium is in Group 16 and Period 4. While it is in the same group as oxygen (another non-metal), it is one period lower. This means it has more electron shells (4 shells) compared to chlorine, leading to a larger atomic radius than chlorine. However, it still has fewer protons than the heavier elements like tin, so its size remains smaller compared to germanium and tin.<\/li>\n\n\n\n<li><strong>Germanium (Ge):<\/strong> Germanium is in Group 14 and Period 4. Germanium has 4 electron shells and 32 protons, which means its atomic radius is larger than chlorine and selenium. The increased number of protons in the nucleus (compared to selenium) causes the outer electrons to be pulled in slightly more, but the greater number of electron shells results in a larger radius than selenium.<\/li>\n\n\n\n<li><strong>Tin (Sn):<\/strong> Tin is in Group 14 and Period 5. With 5 electron shells and 50 protons, tin has the largest atomic radius among the four elements. The greater number of electron shells and the lower effective nuclear charge due to shielding from the inner electrons allows the outermost electrons to be farther from the nucleus.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Conclusion:<\/h3>\n\n\n\n<p>The atomic size increases as you move down a group and decreases as you move across a period from left to right. Therefore, the atomic sizes increase in the order: <strong>Cl &lt; Se &lt; Ge &lt; Sn<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Arrange the elements Cl, Sn, Ge, and Se in order of increasing atomic size (list smallest first). A) Sn B) Cl C) Ge D) Se The correct answer and explanation is : The correct order of increasing atomic size (smallest first) for the elements Cl (Chlorine), Sn (Tin), Ge (Germanium), and Se (Selenium) is: B) [&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-208809","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/208809","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=208809"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/208809\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=208809"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=208809"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=208809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}