{"id":224800,"date":"2025-06-03T13:42:50","date_gmt":"2025-06-03T13:42:50","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=224800"},"modified":"2025-06-03T13:42:52","modified_gmt":"2025-06-03T13:42:52","slug":"draw-the-electron-dot-formula-for-selenium-oxide","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/03\/draw-the-electron-dot-formula-for-selenium-oxide\/","title":{"rendered":"Draw the electron dot formula for selenium oxide"},"content":{"rendered":"\n

Draw the electron dot formula for selenium oxide; SeO2 and state the type of bonds in a selenium dioxide molecule. 1 double bond and 1 single bond<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

Correct Answer:<\/strong>
\u2705 2 double bonds<\/strong><\/p>\n\n\n\n

\n\n\n\n

Explanation<\/h3>\n\n\n\n

Selenium dioxide, SeO\u2082<\/strong>, is a covalent compound consisting of one selenium (Se) atom and two oxygen (O) atoms. To understand the correct bonding and structure, we must consider the Lewis structure<\/strong> and formal charges<\/strong>.<\/p>\n\n\n\n

Selenium (atomic number 34) is in group 16, like oxygen, and has 6 valence electrons<\/strong>. Oxygen also has 6 valence electrons. So the total number of valence electrons in SeO\u2082 is:<\/p>\n\n\n\n

    \n
  • 1 Se \u00d7 6 = 6<\/li>\n\n\n\n
  • 2 O \u00d7 6 = 12<\/li>\n\n\n\n
  • Total = 18 valence electrons<\/strong><\/li>\n<\/ul>\n\n\n\n

    To draw the electron dot structure:<\/p>\n\n\n\n

      \n
    1. Place selenium (Se) in the center<\/strong> because it is less electronegative than oxygen.<\/li>\n\n\n\n
    2. Connect each oxygen atom to selenium with a single bond. That uses 4 electrons (2 per bond).<\/li>\n\n\n\n
    3. We have 14 electrons remaining (18 – 4 = 14). Place 6 electrons (3 lone pairs) on each oxygen atom to fulfill their octets. That uses 12 more electrons.<\/li>\n\n\n\n
    4. Now, 2 electrons remain, which go on selenium.<\/li>\n<\/ol>\n\n\n\n

      At this point, each oxygen has 8 electrons (including the bonding pair), but selenium has only 6 (2 from lone pair + 2 from each single bond). To complete selenium\u2019s octet, we convert a lone pair from each oxygen into a double bond<\/strong> with selenium.<\/p>\n\n\n\n

      The final structure has two Se=O double bonds<\/strong>, and each atom satisfies the octet rule. This also ensures that the formal charges<\/strong> on all atoms are zero, which confirms the structure is stable and correct.<\/p>\n\n\n\n

      Triple bonds are unlikely with oxygen due to its inability to effectively form three bonds while maintaining a neutral formal charge. Hence, the correct bonding in SeO\u2082 involves two double bonds<\/strong>, not single\/triple combinations.<\/p>\n\n\n\n

      \n\n\n\n

      Conclusion:<\/strong>
      The selenium dioxide molecule has two double bonds<\/strong>, making the correct answer:
      \u2705 2 double bonds<\/strong>.<\/p>\n\n\n\n

      \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

      Draw the electron dot formula for selenium oxide; SeO2 and state the type of bonds in a selenium dioxide molecule. 1 double bond and 1 single bond The Correct Answer and Explanation is: Correct Answer:\u2705 2 double bonds Explanation Selenium dioxide, SeO\u2082, is a covalent compound consisting of one selenium (Se) atom and two oxygen […]<\/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-224800","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/224800","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=224800"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/224800\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=224800"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=224800"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=224800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}