Which sentence best describes a bond formed between two unlike atoms?<\/p>\n\n\n\n
The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n The best sentence to describe a bond formed between two unlike atoms is: “A polar covalent bond is formed when two atoms with different electronegativities share an electron pair, but the more electronegative atom attracts the electron pair more strongly.”<\/p>\n\n\n\n In chemical bonding, atoms form bonds to achieve a more stable electron configuration. Atoms can bond in different ways depending on their electronegativity, which is a measure of an atom’s ability to attract and hold onto electrons.<\/p>\n\n\n\n In the case of a polar covalent bond, the two atoms involved are typically nonmetals that differ in electronegativity. One atom has a stronger pull on the shared electrons, causing an uneven distribution of electron density. This results in a partial negative charge on the atom with higher electronegativity and a partial positive charge on the atom with lower electronegativity. For example, in a water molecule (H2O), the oxygen atom is more electronegative than the hydrogen atoms, so it pulls the shared electrons closer to itself, creating a dipole.<\/p>\n\n\n\n This unequal sharing of electrons distinguishes a polar covalent bond from a nonpolar covalent bond, where the electrons are shared more equally. A nonpolar covalent bond typically forms between two identical atoms, like in a molecule of oxygen (O2), where both atoms have the same electronegativity and share electrons evenly.<\/p>\n\n\n\n The polar nature of the bond influences the molecule’s overall properties. Molecules with polar covalent bonds often have higher boiling points, can dissolve in water, and exhibit dipole-dipole interactions, which are crucial in many biological processes.<\/p>\n\n\n\n In summary, a bond between unlike atoms that differ in electronegativity is best described as a polar covalent bond due to the unequal sharing of electrons.<\/p>\n","protected":false},"excerpt":{"rendered":" Which sentence best describes a bond formed between two unlike atoms? The correct answer and explanation is: The best sentence to describe a bond formed between two unlike atoms is: “A polar covalent bond is formed when two atoms with different electronegativities share an electron pair, but the more electronegative atom attracts the electron pair […]<\/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-241508","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/241508","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=241508"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/241508\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=241508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=241508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=241508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}