{"id":577,"date":"2019-07-08T19:51:32","date_gmt":"2019-07-08T14:21:32","guid":{"rendered":"https:\/\/www.chemtopper.com\/myblog\/?page_id=577"},"modified":"2025-07-18T20:30:15","modified_gmt":"2025-07-18T15:00:15","slug":"introduction-electronegativity-polarity-bonds","status":"publish","type":"page","link":"https:\/\/www.chemtopper.com\/myblog\/introduction-electronegativity-polarity-bonds\/","title":{"rendered":"Definition of Electronegativity, Difference from Electron Affinity, Polar and Non Polar Bonds, Separation of Charges and Cause of Polarity -Part 1"},"content":{"rendered":"<h3><strong><span style=\"color: #0000ff;\">Meaning<\/span><span style=\"color: #0000ff;\"> of Non Polar, Polar Bonds and Electronegativity:<\/span><\/strong><\/h3>\n<p style=\"text-align: left;\"><span style=\"color: #000000;\">Introduction to Electronegativity part 1 video explains answers\u00a0to all\u00a0questions listed below :<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">What is a nonpolar bond ?<\/span><\/li>\n<li><span style=\"color: #000000;\">What s a polar bond ?<\/span><\/li>\n<li><span style=\"color: #000000;\">What is a dipole ?<\/span><\/li>\n<li><span style=\"color: #000000;\">Definition and\u00a0\u00a0meaning of electronegativity.<\/span><\/li>\n<li><span style=\"color: #000000;\">Definition and\u00a0meaning of electron affinity.<\/span><\/li>\n<li><span style=\"color: #000000;\">Difference in electronegativity vs electron affinity ?<\/span><\/li>\n<\/ul>\n<p><strong><span style=\"color: #0000ff;\">Here is the brief summary :<\/span><\/strong><\/p>\n<p><span style=\"color: #000000;\">Bond in which there is no <strong><span style=\"color: #ff0000;\">charge separation or polarity\u00a0<\/span><\/strong> is called as <strong><span style=\"color: #ff0000;\">non polar Bond <\/span><\/strong>like hydrogen molecule(H2)\u00a0 or Chlorine molecules (Cl2).<\/span><\/p>\n<figure id=\"attachment_779\" aria-describedby=\"caption-attachment-779\" style=\"width: 1011px\" class=\"wp-caption alignleft\"><a style=\"color: #000000;\" href=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/1-2.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-779\" src=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/1-2.png\" alt=\"Why Hydrogen molecule is non polar and hydrogen chloride molecule is polar.\" width=\"1011\" height=\"597\" srcset=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/1-2.png 1011w, https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/1-2-300x177.png 300w, https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/1-2-768x454.png 768w\" sizes=\"auto, (max-width: 1011px) 100vw, 1011px\" \/><\/a><figcaption id=\"caption-attachment-779\" class=\"wp-caption-text\"><strong><span style=\"color: #ff0000;\">Why Hydrogen molecule is non polar and hydrogen chloride molecule is polar.<\/span><\/strong><\/figcaption><\/figure>\n<h3><span style=\"color: #000000;\">\u00a0<\/span><span style=\"color: #000000;\">Bond in which <strong><span style=\"color: #ff0000;\">there is charge separation or polarity\u00a0<\/span><\/strong> is called as <strong><span style=\"color: #ff0000;\">polar bond<\/span><\/strong> like HCl\u00a0 or HF molecules.<\/span><\/h3>\n<figure id=\"attachment_780\" aria-describedby=\"caption-attachment-780\" style=\"width: 1015px\" class=\"wp-caption alignleft\"><a style=\"color: #000000;\" href=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/2-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-780\" src=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/2-1.png\" alt=\"HCl is a polar molecule due to difference in electronegativity \" width=\"1015\" height=\"587\" srcset=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/2-1.png 1015w, https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/2-1-300x173.png 300w, https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/2-1-768x444.png 768w\" sizes=\"auto, (max-width: 1015px) 100vw, 1015px\" \/><\/a><figcaption id=\"caption-attachment-780\" class=\"wp-caption-text\"><strong><span style=\"color: #ff0000;\">HCl is a polar molecule due to difference in electronegativity<\/span><\/strong><\/figcaption><\/figure>\n<p><span style=\"color: #000000;\">During charge separation due to difference in electronegativity\u00a0 two poles are created\u00a0 in the\u00a0covalent bond -a partial\u00a0 positive <strong>(\u2202+)<\/strong>and a\u00a0partial negative <strong>(\u2202-)<\/strong>and is called as a <strong><span style=\"color: #ff0000;\">dipole .<\/span><\/strong><\/span><\/p>\n<h3><strong><span style=\"color: #0000ff;\">Polarity &#8212;-&gt; charge separation &#8212;&#8212;&gt;polar bond &#8212;&#8212;&gt; dipole\u00a0<\/span><\/strong><\/h3>\n<h3><strong><span style=\"color: #0000ff;\">No Polarity&#8212;-&gt; No charge separation &#8212;-&gt;Non polar bond &#8212;-&gt;No\u00a0 dipole\u00a0<\/span><\/strong><\/h3>\n<figure id=\"attachment_781\" aria-describedby=\"caption-attachment-781\" style=\"width: 1015px\" class=\"wp-caption alignleft\"><a style=\"color: #000000;\" href=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/3-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-781\" src=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/3-1.png\" alt=\"Examples of non polar and polar molecules and reason for polarity \" width=\"1015\" height=\"587\" srcset=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/3-1.png 1015w, https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/3-1-300x173.png 300w, https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/3-1-768x444.png 768w\" sizes=\"auto, (max-width: 1015px) 100vw, 1015px\" \/><\/a><figcaption id=\"caption-attachment-781\" class=\"wp-caption-text\"><strong><span style=\"color: #ff0000;\">Examples of non polar and polar molecules and reason for polarity<\/span><\/strong><\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Hydrogen fluorine bond is a polar bond,\u00a0nitrogen molecule is non polar\u00a0 molecule .<\/span><\/p>\n<p><strong><span style=\"color: #ff0000;\">Big Question?? Why is there charge separation in polar bonds?<\/span><\/strong><\/p>\n<p><span style=\"color: #000000;\">Answer is difference in electronegativity between the bonded atoms.More is the difference in electronegativity, more is the charge separation and more is the polarity.<\/span><\/p>\n<p><span style=\"color: #000000;\">In Hydrogen fluoride molecule &#8211; fluorine is more electronegative than hydrogen so there is charge separation and bond is polar in nature.<\/span><\/p>\n<figure id=\"attachment_775\" aria-describedby=\"caption-attachment-775\" style=\"width: 1009px\" class=\"wp-caption alignleft\"><a style=\"color: #000000;\" href=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/4-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-775\" src=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/4-1.png\" alt=\"HF is a polar molecule and Nitrogen is a non polar molecule \" width=\"1009\" height=\"270\" srcset=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/4-1.png 1009w, https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/4-1-300x80.png 300w, https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/4-1-768x206.png 768w\" sizes=\"auto, (max-width: 1009px) 100vw, 1009px\" \/><\/a><figcaption id=\"caption-attachment-775\" class=\"wp-caption-text\"><strong><span style=\"color: #ff0000;\">HF is a polar molecule and Nitrogen is a non polar molecule<\/span><\/strong><\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #0000ff;\">Definition of electronegativity:<\/span><\/strong><\/p>\n<p><span style=\"color: #000000;\">Electronegativity is the ability of the tendency of an atom to attract shared electrons on itself in a chemical bond\u00a0.<\/span><\/p>\n<p><strong><span style=\"color: #0000ff;\">Definition of electron affinity:<\/span><\/strong><\/p>\n<p><span style=\"color: #000000;\">It is the energy released\u00a0when an electron is added in an isolated gaseous atom.<\/span><\/p>\n<p><strong><span style=\"color: #0000ff;\">Basic difference in EN and EA\u00a0 <\/span><\/strong><\/p>\n<figure id=\"attachment_782\" aria-describedby=\"caption-attachment-782\" style=\"width: 1015px\" class=\"wp-caption alignleft\"><a style=\"color: #000000;\" href=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/5-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-782\" src=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/5-1.png\" alt=\"Difference in electronegativity and electron affinity \" width=\"1015\" height=\"589\" srcset=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/5-1.png 1015w, https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/5-1-300x174.png 300w, https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/5-1-768x446.png 768w\" sizes=\"auto, (max-width: 1015px) 100vw, 1015px\" \/><\/a><figcaption id=\"caption-attachment-782\" class=\"wp-caption-text\"><strong><span style=\"color: #ff0000;\">Difference in electronegativity and electron affinity<\/span><\/strong><\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #0000ff;\">Remember-Electronegativity vs Electron affinity\u00a0<\/span><\/strong><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Electronegativity is the tendency and not the energy released or required.<\/span><\/li>\n<li><span style=\"color: #000000;\">Electronegativity operates in chemical bonds and it is not in isolated atoms.<\/span><\/li>\n<li><span style=\"color: #000000;\">Whereas Electron affinity or\u00a0 the electron gain enthalpy is the energy released when an electron is added in the isolated gaseous neutral atom\u00a0So units of electron gain enthalpy is in terms of joules or kilojoules<\/span><\/li>\n<li><span style=\"color: #000000;\">Electronegativity\u00a0 is the tendency so it is not measured in terms of joules or\u00a0 kilo Joule<\/span><\/li>\n<\/ol>\n<p><strong><span style=\"color: #ff0000;\">Introduction to Electronegativity and Electron affinity -Part 1<\/span><\/strong><\/p>\n<div class=\"ast-oembed-container\"><iframe loading=\"lazy\" title=\"What is Electronegativity and meaning of  polarity in bonds (EN part 1)?\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/NL6fwq8MKrI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<h3><span style=\"color: #000000;\">\u00a0<\/span><\/h3>\n<p><strong><span style=\"color: #0000ff;\">Chart of electronegativity\u00a0 or periodic table of electronegativity based on Pauling scale:<\/span><\/strong><\/p>\n<figure id=\"attachment_802\" aria-describedby=\"caption-attachment-802\" style=\"width: 1017px\" class=\"wp-caption alignleft\"><a style=\"color: #000000;\" href=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/3-blog.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-802\" src=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/3-blog.png\" alt=\"Electronegativity chart or values of electronegativities .\" width=\"1017\" height=\"592\" srcset=\"https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/3-blog.png 1017w, https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/3-blog-300x175.png 300w, https:\/\/www.chemtopper.com\/myblog\/wp-content\/uploads\/2019\/07\/3-blog-768x447.png 768w\" sizes=\"auto, (max-width: 1017px) 100vw, 1017px\" \/><\/a><figcaption id=\"caption-attachment-802\" class=\"wp-caption-text\"><strong><span style=\"color: #ff0000;\">Electronegativity chart or values of electronegativities .<\/span><\/strong><\/figcaption><\/figure>\n<h3><span style=\"color: #000000;\">\u00a0<\/span><\/h3>\n<h3><strong><span style=\"color: #ff0000;\">Quiz on Introduction to Electronegativity and Electron affinity -Part 1<\/span><\/strong><\/h3>\n<p><span style=\"color: #000000;\"><div class = \"hdq_quiz_wrapper\"><a href = \"https:\/\/www.chemtopper.com\/myblog\/introduction-electronegativity-polarity-bonds\/\" rel=\"noamphtml\" class = \"hdq_quiz_start hdq_button button\" role = \"button\">QUIZ START<\/a><\/div><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Meaning of Non Polar, Polar Bonds and Electronegativity: Introduction to Electronegativity part 1 video explains answers\u00a0to all\u00a0questions listed below : What is a nonpolar bond ? What s a polar bond ? What is a dipole ? Definition and\u00a0\u00a0meaning of electronegativity. Definition and\u00a0meaning of electron affinity. Difference in electronegativity vs electron affinity ? Here is &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.chemtopper.com\/myblog\/introduction-electronegativity-polarity-bonds\/\"> <span class=\"screen-reader-text\">Definition of Electronegativity, Difference from Electron Affinity, Polar and Non Polar Bonds, Separation of Charges and Cause of Polarity -Part 1<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[13,46],"class_list":["post-577","page","type-page","status-publish","hentry","category-ap-chemistry-exam","category-electronegativity"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>(Videoquiz) Definition electronegativity Polar dipole Electron Affinity<\/title>\n<meta name=\"description\" content=\"Definition of Electronegativity, difference from 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