{"id":3645,"date":"2023-01-09T10:09:42","date_gmt":"2023-01-09T10:09:42","guid":{"rendered":"https:\/\/9thclass.deltapublications.in\/?page_id=3645"},"modified":"2025-11-21T10:03:13","modified_gmt":"2025-11-21T10:03:13","slug":"s-3-c-what-is-a-molecule","status":"publish","type":"page","link":"https:\/\/9thclass.deltapublications.in\/index.php\/s-3-c-what-is-a-molecule\/","title":{"rendered":"S-3.c What Is A Molecule?"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>What Is A Molecule?<\/strong><\/h2>\n\n\n\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#74008b\"><strong>Key Notes:<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-f4aab12c220755c342382c1ca4611f52\" style=\"color:#000060;background-color:#dfc816\"><strong>Definition of a Molecule<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"548\" height=\"233\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-57.png\" alt=\"\" class=\"wp-image-16073\" style=\"width:477px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-57.png 548w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-57-300x128.png 300w\" sizes=\"auto, (max-width: 548px) 100vw, 548px\" \/><\/figure><\/div>\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>A molecule is a group of two or more atoms bonded together. These atoms can be of the same or different elements.<\/li>\n\n\n\n<li>Molecules are the smallest unit of a chemical compound that can exist independently while retaining the chemical properties of that compound.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-61eeebf2191034e30b10ec65be9ff831\" style=\"color:#000060;background-color:#dfc816\"><strong>Types of Molecules<\/strong>:<\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li><strong>Diatomic molecules<\/strong>: Composed of two atoms, usually of the same element (e.g., oxygen (O\u2082), nitrogen (N\u2082)).<\/li>\n\n\n\n<li><strong>Polyatomic molecules<\/strong>: Composed of three or more atoms, which may be the same or different elements (e.g., water (H\u2082O), carbon dioxide (CO\u2082)).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-4466633dfa99cee199787181b2043c22\" style=\"color:#000060;background-color:#dfc816\"><strong>Atoms in Molecules<\/strong>:<\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>Molecules are made up of atoms that are held together by chemical bonds, which can be covalent, ionic, or metallic bonds.<\/li>\n\n\n\n<li><strong>Covalent bonds<\/strong>: Formed when two atoms share electrons.<\/li>\n\n\n\n<li><strong>Ionic bonds<\/strong>: Formed when one atom gives up electrons to another atom, creating positive and negative ions that attract each other.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-7e76e660ed9d8e6a4f48aaab039489b4\" style=\"color:#000060;background-color:#dfc816\"><strong>Molecular Formula<\/strong>:<\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>A molecular formula represents the number and types of atoms in a molecule (e.g., H\u2082O for water, CO\u2082 for carbon dioxide).<\/li>\n\n\n\n<li>It does not show the arrangement of atoms, which would require a structural formula.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-5c136dbb7864c1b8dd31a21074bcfbf4\" style=\"color:#000060;background-color:#dfc816\"><strong>Importance of Molecules<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"681\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-60-1024x681.png\" alt=\"\" class=\"wp-image-16077\" style=\"width:412px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-60-1024x681.png 1024w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-60-300x199.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-60-768x510.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-60.png 1500w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>Molecules make up all matter, including solids, liquids, and gases.<\/li>\n\n\n\n<li>Biological molecules like proteins, DNA, and carbohydrates are essential for life processes.<\/li>\n\n\n\n<li>Chemical reactions involve the breaking and forming of bonds between molecules.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-8e9bcec32c8670bf387f55d80d2671a3\" style=\"color:#000060;background-color:#dfc816\"><strong>Molecule vs Atom<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-62-1024x576.png\" alt=\"\" class=\"wp-image-16079\" style=\"width:492px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-62-1024x576.png 1024w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-62-300x169.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-62-768x432.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-62.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>An atom is the smallest unit of an element, while a molecule is a combination of atoms.<\/li>\n\n\n\n<li>Atoms can exist independently (e.g., noble gases like helium, neon), but molecules need at least two atoms to exist.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-f97f62a9b8d63125c3ba1376ab3537b3\" style=\"color:#000060;background-color:#dfc816\"><strong>Properties of Molecules<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"350\" height=\"195\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-63.png\" alt=\"\" class=\"wp-image-16080\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-63.png 350w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-63-300x167.png 300w\" sizes=\"auto, (max-width: 350px) 100vw, 350px\" \/><\/figure><\/div>\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>The properties of a molecule (such as its size, shape, and polarity) depend on the types of atoms involved and how they are bonded together.<\/li>\n\n\n\n<li>For example, water molecules are polar, which means they have a slight electrical charge difference, allowing them to form hydrogen bonds.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-ba0f18329e92eb109e180e05ef018596\" style=\"color:#000060;background-color:#dfc816\"><strong>Examples of Molecules<\/strong>:<\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li><strong>Water (H\u2082O)<\/strong>: Composed of two hydrogen atoms and one oxygen atom.<\/li>\n\n\n\n<li><strong>Carbon dioxide (CO\u2082)<\/strong>: Composed of one carbon atom and two oxygen atoms.<\/li>\n\n\n\n<li><strong>Oxygen (O\u2082)<\/strong>: Composed of two oxygen atoms.<\/li>\n\n\n\n<li><strong>Methane (CH\u2084)<\/strong>: Composed of one carbon atom and four hydrogen atoms.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\">Let&#8217;s practice!<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/75921\/355\/861\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-12.png\" alt=\"\" class=\"wp-image-6373\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-12.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-12-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-12-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/58850\/451\/665\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-13.png\" alt=\"\" class=\"wp-image-6374\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-13.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-13-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-13-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>What Is A Molecule? Key Notes: Definition of a Molecule: Types of Molecules: Atoms in Molecules: Molecular Formula: Importance of Molecules: Molecule vs Atom: Properties of Molecules: Examples of Molecules: Let&#8217;s practice!<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-3645","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3645","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3645"}],"version-history":[{"count":23,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3645\/revisions"}],"predecessor-version":[{"id":16336,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3645\/revisions\/16336"}],"wp:attachment":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}