{"id":46658,"date":"2025-07-02T07:46:01","date_gmt":"2025-07-02T07:46:01","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=46658"},"modified":"2025-07-02T07:46:02","modified_gmt":"2025-07-02T07:46:02","slug":"which-compound-has-the-largest-lattice-energy","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/which-compound-has-the-largest-lattice-energy\/","title":{"rendered":"Which compound has the largest lattice energy"},"content":{"rendered":"\n<p>Which compound has the largest lattice energy? NaF b. Al2O3 c. MgO d. CaS e. CaO<\/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 compound with the largest lattice energy is <strong>Al\u2082O\u2083 (aluminum oxide)<\/strong>.<\/p>\n\n\n\n<p>Lattice energy is the energy released when one mole of an ionic compound is formed from its ions in the gas phase. Larger lattice energy typically results from stronger electrostatic attractions between ions. These attractions depend on two factors:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Charge on the ions<\/strong>: The larger the charge, the stronger the electrostatic attraction. The lattice energy increases with the charge of the ions involved in the formation of the ionic lattice. For example, Al\u00b3\u207a has a higher charge than Na\u207a, Ca\u00b2\u207a, Mg\u00b2\u207a, and O\u00b2\u207b.<\/li>\n\n\n\n<li><strong>Ionic radius<\/strong>: The smaller the ions, the closer they can pack together, leading to stronger attraction and a higher lattice energy. Smaller ions result in a greater charge density, which enhances the lattice energy.<\/li>\n<\/ol>\n\n\n\n<p>Let&#8217;s look at each compound:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>NaF (Sodium fluoride)<\/strong>: Sodium (Na\u207a) has a +1 charge, and fluoride (F\u207b) has a -1 charge. Although fluorine is small, the lattice energy is lower compared to others because of the low charge on sodium.<\/li>\n\n\n\n<li><strong>Al\u2082O\u2083 (Aluminum oxide)<\/strong>: Aluminum (Al\u00b3\u207a) has a +3 charge, and oxygen (O\u00b2\u207b) has a -2 charge. The high charges on both ions, especially the highly charged Al\u00b3\u207a, lead to a very strong electrostatic attraction and thus a high lattice energy.<\/li>\n\n\n\n<li><strong>MgO (Magnesium oxide)<\/strong>: Magnesium (Mg\u00b2\u207a) has a +2 charge, and oxygen (O\u00b2\u207b) has a -2 charge. Magnesium has a higher charge than sodium, but its lattice energy is still lower than that of Al\u2082O\u2083 due to the lower charge on Mg\u00b2\u207a compared to Al\u00b3\u207a.<\/li>\n\n\n\n<li><strong>CaS (Calcium sulfide)<\/strong>: Calcium (Ca\u00b2\u207a) has a +2 charge, and sulfur (S\u00b2\u207b) has a -2 charge. Although the ions are larger than Mg\u00b2\u207a and O\u00b2\u207b, the lattice energy is still lower because of the larger ionic radii of Ca\u00b2\u207a and S\u00b2\u207b.<\/li>\n\n\n\n<li><strong>CaO (Calcium oxide)<\/strong>: Calcium (Ca\u00b2\u207a) and oxygen (O\u00b2\u207b) have charges of +2 and -2, respectively, similar to MgO, but calcium ions are larger, leading to a lower lattice energy than Al\u2082O\u2083.<\/li>\n<\/ul>\n\n\n\n<p>Therefore, <strong>Al\u2082O\u2083<\/strong> has the largest lattice energy due to the high charges on both aluminum and oxygen, resulting in the strongest ionic attraction.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-170.jpeg\" alt=\"\" class=\"wp-image-46660\" srcset=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-170.jpeg 1024w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-170-300x300.jpeg 300w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-170-150x150.jpeg 150w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-170-768x768.jpeg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Which compound has the largest lattice energy? NaF b. Al2O3 c. MgO d. CaS e. CaO The Correct Answer and Explanation is: The compound with the largest lattice energy is Al\u2082O\u2083 (aluminum oxide). Lattice energy is the energy released when one mole of an ionic compound is formed from its ions in the gas phase. [&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-46658","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/46658","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=46658"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/46658\/revisions"}],"predecessor-version":[{"id":46665,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/46658\/revisions\/46665"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=46658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=46658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=46658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}