{"id":244211,"date":"2025-07-04T21:21:33","date_gmt":"2025-07-04T21:21:33","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=244211"},"modified":"2025-07-04T21:21:35","modified_gmt":"2025-07-04T21:21:35","slug":"which-element-has-atoms-that-can-form-halide-ions","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/04\/which-element-has-atoms-that-can-form-halide-ions\/","title":{"rendered":"Which element has atoms that can form halide ions"},"content":{"rendered":"\n<p>Which element has atoms that can form halide ions? (1) iodine (3) strontium (2) silver (4) xenon<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The correct answer is <strong>(1) iodine<\/strong>.<\/p>\n\n\n\n<p>Halide ions are negatively charged ions formed when halogens (elements in Group 17 of the periodic table) gain one electron. Iodine is a halogen, and like other halogens (fluorine, chlorine, bromine, etc.), it readily gains an electron to form a halide ion. When iodine gains an electron, it forms an iodide ion (I\u2212I^-I\u2212).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Iodine<\/strong> (I) is in Group 17, which is the halogen group. The halogens have seven valence electrons and tend to gain one electron to complete their octet, thus forming a negative ion (anion). When iodine gains one electron, it becomes I\u2212I^-I\u2212, the iodide ion.<\/li>\n\n\n\n<li><strong>Silver (Ag)<\/strong> is a metal and typically forms positive ions, not halide ions. It usually forms a Ag+Ag^+Ag+ ion when it loses one electron, but it can combine with halogens (such as chlorine or iodine) to form silver halides (e.g., AgClAgClAgCl, AgIAgIAgI), where silver acts as the cation.<\/li>\n\n\n\n<li><strong>Strontium (Sr)<\/strong> is an alkaline earth metal in Group 2, and it typically forms a Sr2+Sr^{2+}Sr2+ ion by losing two electrons, not a halide ion.<\/li>\n\n\n\n<li><strong>Xenon (Xe)<\/strong> is a noble gas (Group 18) and generally does not form halide ions under normal conditions. Noble gases have a full octet of electrons and are chemically inert.<\/li>\n<\/ul>\n\n\n\n<p>Thus, iodine is the only element in the list that can form halide ions like I\u2212I^-I\u2212.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-404.jpeg\" alt=\"\" class=\"wp-image-244212\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Which element has atoms that can form halide ions? (1) iodine (3) strontium (2) silver (4) xenon The Correct Answer and Explanation is: The correct answer is (1) iodine. Halide ions are negatively charged ions formed when halogens (elements in Group 17 of the periodic table) gain one electron. Iodine is a halogen, and like [&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-244211","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/244211","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=244211"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/244211\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=244211"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=244211"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=244211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}