{"id":28288,"date":"2025-06-20T11:34:25","date_gmt":"2025-06-20T11:34:25","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=28288"},"modified":"2025-06-20T11:34:26","modified_gmt":"2025-06-20T11:34:26","slug":"predict-the-electron-domain-and-molecular-geometries-of-sf5","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/predict-the-electron-domain-and-molecular-geometries-of-sf5\/","title":{"rendered":"Predict the electron-domain and molecular geometries of SF5+"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Predict the electron-domain and molecular geometries of SF5+.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>The correct answer and explanation is:<\/strong><\/mark><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Correct Answer:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Electron-Domain Geometry of SF\u2085\u207a<\/strong>: <strong>Octahedral<\/strong><\/li>\n\n\n\n<li><strong>Molecular Geometry of SF\u2085\u207a<\/strong>: <strong>Square pyramidal<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation (Approx. 300 words):<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The molecule <strong>SF\u2085\u207a<\/strong> (sulfur pentafluoride cation) is derived from the neutral molecule <strong>SF\u2086<\/strong>, sulfur hexafluoride. To determine the geometry of SF\u2085\u207a, we must first consider the <strong>Lewis structure<\/strong> and <strong>VSEPR theory<\/strong> (Valence Shell Electron Pair Repulsion).<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Count the Valence Electrons<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sulfur (S)<\/strong> has 6 valence electrons.<\/li>\n\n\n\n<li>Each <strong>fluorine (F)<\/strong> has 7 valence electrons \u00d7 5 = 35.<\/li>\n\n\n\n<li>The <strong>+1 charge<\/strong> indicates the loss of 1 electron.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Total = 6 + 35 &#8211; 1 = 40 valence electrons<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Determine the Electron-Domain Geometry<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The sulfur atom forms 5 S\u2013F bonds. In SF\u2086, sulfur makes 6 bonds (forming an <strong>octahedral<\/strong> shape). In SF\u2085\u207a, it forms <strong>only 5 bonds<\/strong> and has <strong>no lone pairs<\/strong>, but still occupies <strong>6 electron domains<\/strong>: five bonding pairs and one empty site due to the missing electron from the positive charge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This arrangement still corresponds to an <strong>octahedral electron-domain geometry<\/strong> (based on 6 regions of electron density), according to VSEPR theory.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3: Determine the Molecular Geometry<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">With <strong>one position vacant<\/strong> (like a lone pair or an empty orbital), and <strong>five bonded fluorine atoms<\/strong>, the shape becomes <strong>square pyramidal<\/strong>. This is because:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Four fluorine atoms occupy the corners of a square in the equatorial plane.<\/li>\n\n\n\n<li>The fifth fluorine occupies an axial position.<\/li>\n\n\n\n<li>The sixth site is unoccupied due to the missing electron (positive charge), creating a &#8220;lone pair-like&#8221; vacancy.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Conclusion<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>electron-domain geometry<\/strong> remains <strong>octahedral<\/strong>.<\/li>\n\n\n\n<li>The <strong>molecular geometry<\/strong> is <strong>square pyramidal<\/strong>, as one position is vacant and five atoms surround the central sulfur.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Predict the electron-domain and molecular geometries of SF5+. The correct answer and explanation is: Correct Answer: Explanation (Approx. 300 words): The molecule SF\u2085\u207a (sulfur pentafluoride cation) is derived from the neutral molecule SF\u2086, sulfur hexafluoride. To determine the geometry of SF\u2085\u207a, we must first consider the Lewis structure and VSEPR theory (Valence Shell Electron Pair [&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-28288","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/28288","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=28288"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/28288\/revisions"}],"predecessor-version":[{"id":28291,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/28288\/revisions\/28291"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=28288"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=28288"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=28288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}