{"id":167374,"date":"2024-11-15T16:47:54","date_gmt":"2024-11-15T16:47:54","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=167374"},"modified":"2024-11-15T16:47:56","modified_gmt":"2024-11-15T16:47:56","slug":"write-the-electron-dot-structure-for-calcium-and-oxygen","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/11\/15\/write-the-electron-dot-structure-for-calcium-and-oxygen\/","title":{"rendered":"Write the electron dot structure for calcium and oxygen."},"content":{"rendered":"\n<p>Write the electron dot structure for calcium and oxygen. The atomic numbers of calcium and oxyzen are 20 and 8 respectively. Show the formation of calcium oxide by the transfer of electrons. Ionic compounds are high melting solids.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Electron Dot Structure for Calcium and Oxygen<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Calcium (Ca)<\/strong> has an atomic number of 20, which means it has 20 electrons. The electron configuration of calcium is:<br>[<br>1s^2 \\, 2s^2 \\, 2p^6 \\, 3s^2 \\, 3p^6 \\, 4s^2<br>]<br>Calcium has two electrons in its outermost shell (4s\u00b2), which are available for bonding. In the electron dot structure, these two electrons are represented as dots around the element symbol:<br>[<br>\\text{Ca: } \\, \\cdot \\cdot<br>]<\/li>\n\n\n\n<li><strong>Oxygen (O)<\/strong> has an atomic number of 8, with the electron configuration:<br>[<br>1s^2 \\, 2s^2 \\, 2p^4<br>]<br>Oxygen has six electrons in its outermost shell (2s\u00b2 2p\u2074), needing two more electrons to complete its octet. The electron dot structure for oxygen shows six dots around the symbol:<br>[<br>\\text{O: } \\, \\cdot \\cdot \\, \\cdot \\cdot \\, \\cdot<br>]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Formation of Calcium Oxide (CaO)<\/h3>\n\n\n\n<p>Calcium oxide (CaO) is formed by the transfer of electrons between calcium (Ca) and oxygen (O) atoms.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Calcium\u2019s behavior:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Calcium has two electrons in its outer shell, which it can lose to achieve a stable electron configuration similar to that of noble gases.<\/li>\n\n\n\n<li>When calcium loses these two electrons, it becomes a <strong>Ca\u00b2\u207a ion<\/strong> (with a +2 charge):<br>[<br>\\text{Ca: } \\, \\cdot \\cdot \\rightarrow \\text{Ca}^{2+} + 2e^-<br>]<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Oxygen\u2019s behavior:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Oxygen needs two electrons to complete its octet and become stable.<\/li>\n\n\n\n<li>Oxygen accepts the two electrons lost by calcium to form an <strong>O\u00b2\u207b ion<\/strong> (with a -2 charge):<br>[<br>\\text{O: } \\, \\cdot \\cdot \\, \\cdot \\cdot \\, \\cdot \\rightarrow \\text{O}^{2-} + 2e^-<br>]<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Ionic Bond Formation:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The calcium ion (Ca\u00b2\u207a) and the oxide ion (O\u00b2\u207b) are now oppositely charged. Since opposite charges attract, the two ions form an ionic bond to create calcium oxide (CaO):<br>[<br>\\text{Ca}^{2+} + \\text{O}^{2-} \\rightarrow \\text{CaO}<br>]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">High Melting Point of Ionic Compounds<\/h3>\n\n\n\n<p>Ionic compounds, such as calcium oxide (CaO), are <strong>high-melting solids<\/strong> because the electrostatic forces between the positively charged calcium ions (Ca\u00b2\u207a) and the negatively charged oxide ions (O\u00b2\u207b) are very strong. These strong ionic bonds require a large amount of energy to break, leading to a high melting point. Calcium oxide, specifically, has a melting point of around 2,572\u00b0C, demonstrating the strength of its ionic bonds.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Write the electron dot structure for calcium and oxygen. The atomic numbers of calcium and oxyzen are 20 and 8 respectively. Show the formation of calcium oxide by the transfer of electrons. Ionic compounds are high melting solids. The Correct Answer and Explanation is: Electron Dot Structure for Calcium and Oxygen Formation of Calcium Oxide [&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-167374","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/167374","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=167374"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/167374\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=167374"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=167374"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=167374"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}