{"id":14951,"date":"2025-08-14T09:53:32","date_gmt":"2025-08-14T04:23:32","guid":{"rendered":"https:\/\/aluminiummagazine.com\/mag\/?p=14951"},"modified":"2025-08-14T10:32:04","modified_gmt":"2025-08-14T05:02:04","slug":"aluminium-element-symbol-facts-uses","status":"publish","type":"post","link":"https:\/\/aluminiummagazine.com\/mag\/aluminium\/aluminium-element-symbol-facts-uses.html","title":{"rendered":"Aluminium Element: Symbol, Properties, Uses, and Surprising Facts"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Aluminium (symbol Al, atomic number 13)<\/strong> might be hiding in your kitchen foil, your laptop casing, or the body of your car \u2014 but it\u2019s far more important than most people realize.<br>It\u2019s the most abundant metal in Earth\u2019s crust and one of the most versatile materials in modern life \u2014 lightweight, corrosion-resistant, and endlessly recyclable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the periodic table, aluminium sits in the <strong>post-transition metal<\/strong> category, playing the role of the smart, agile lightweight among heavy industry metals.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Quick Reference Table \u2013 Aluminium Element<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Property<\/strong><\/th><th><strong>Details<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Symbol<\/strong><\/td><td>Al<\/td><\/tr><tr><td><strong>Atomic Number<\/strong><\/td><td>13<\/td><\/tr><tr><td><strong>Atomic Mass<\/strong><\/td><td>26.98 u<\/td><\/tr><tr><td><strong>Category<\/strong><\/td><td>Post-transition metal<\/td><\/tr><tr><td><strong>Density<\/strong><\/td><td>2.70 g\/cm\u00b3<\/td><\/tr><tr><td><strong>Melting Point<\/strong><\/td><td>660.3 \u00b0C<\/td><\/tr><tr><td><strong>Boiling Point<\/strong><\/td><td>2470 \u00b0C<\/td><\/tr><tr><td><strong>Oxidation State<\/strong><\/td><td>+3<\/td><\/tr><tr><td><strong>Abundance<\/strong><\/td><td>~8.1% of Earth\u2019s crust<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udca1 <strong>Fun Fact:<\/strong> The name comes from the Latin <em>Alumen<\/em>, meaning alum \u2014 a naturally occurring mineral salt.<br>For an interactive view of the full periodic table, check out <a href=\"https:\/\/ptable.com\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">this detailed periodic chart<\/a>.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Is Aluminium an Element?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Aluminium is a <strong>pure chemical element<\/strong>, not a compound or mixture.<br>Its atoms all have <strong>13 protons<\/strong> in their nuclei.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Naturally, it\u2019s found in minerals like <a href=\"https:\/\/aluminiummagazine.com\/mag\/aluminium\/raw\/raw-aluminum-ore-bauxite.html\" data-type=\"link\" data-id=\"https:\/\/aluminiummagazine.com\/mag\/aluminium\/raw\/raw-aluminum-ore-bauxite.html\">bauxite ore<\/a>. Once refined, aluminium becomes strong, lightweight, and resistant to corrosion \u2014 reasons why it\u2019s so heavily used across industries.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Aluminium Element Symbol<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Its chemical symbol is <strong>Al<\/strong>.<br>This two-letter abbreviation is used in chemical equations and lab work for quick identification.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>4Al + 3O\u2082 \u2192 2Al\u2082O\u2083\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><em>(Aluminium reacts with oxygen to form aluminium oxide.)<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Interesting Facts About Aluminium<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Light but Strong<\/strong> \u2013 About one-third the weight of steel but can be equally strong in alloy form.<\/li>\n\n\n\n<li><strong>Infinitely Recyclable<\/strong> \u2013 Can be melted down and reused forever without losing quality. See our <a href=\"https:\/\/aluminiummagazine.com\/mag\/aluminium\/recycling\/types-of-aluminum-scraps-recycling-process-market-reintegration-sustainability.html\" data-type=\"link\" data-id=\"https:\/\/aluminiummagazine.com\/mag\/aluminium\/recycling\/types-of-aluminum-scraps-recycling-process-market-reintegration-sustainability.html\">aluminium recycling process guide<\/a>.<\/li>\n\n\n\n<li><strong>Excellent Conductor<\/strong> \u2013 Second only to copper for electrical conductivity among common metals.<\/li>\n\n\n\n<li><strong>Self-Protective<\/strong> \u2013 Forms a thin oxide layer instantly when exposed to air, preventing rust.<\/li>\n\n\n\n<li><strong>Aerospace Favorite<\/strong> \u2013 Used extensively in airplanes, satellites, and rockets due to its strength-to-weight ratio.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Is Aluminium Foil an Element or Compound?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium foil is <strong>almost pure aluminium<\/strong> (usually 99% or more).<br>During manufacturing, a very thin oxide layer forms naturally on the surface, which actually protects it from further corrosion. Chemically, it\u2019s still an element.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Is Aluminium a Semiconductor?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">No \u2014 aluminium is a <strong>metal<\/strong> and a good electrical conductor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Semiconductors<\/strong> include elements like <a href=\"https:\/\/en.wikipedia.org\/wiki\/Germanium\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Germanium (Ge)<\/a> and Silicon (Si), whose conductivity can be precisely controlled. Aluminium conducts electricity freely, which is why it\u2019s used in power lines.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Atoms of Which Element Contain 25 Protons?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">An atom\u2019s proton count = its atomic number.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>25 protons<\/strong> = <strong>Manganese (Mn)<\/strong><\/li>\n\n\n\n<li>Aluminium has <strong>13 protons<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Gold, Silver, Sodium, and Aluminium \u2013 What Type of Element Are They?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">They\u2019re all <strong>metals<\/strong>, but in different categories:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Gold (Au)<\/strong> \u2013 Precious metal<\/li>\n\n\n\n<li><strong>Silver (Ag)<\/strong> \u2013 Precious metal<\/li>\n\n\n\n<li><strong>Sodium (Na)<\/strong> \u2013 Alkali metal<\/li>\n\n\n\n<li><strong>Aluminium (Al)<\/strong> \u2013 Post-transition metal<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Common Uses of the Aluminium Element<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Kitchen<\/strong>: Foil wrap, cookware, beverage cans<\/li>\n\n\n\n<li><strong>Construction<\/strong>: Window frames, roofing sheets, wall cladding<\/li>\n\n\n\n<li><strong>Transport<\/strong>: Car parts, aircraft bodies, ship superstructures<\/li>\n\n\n\n<li><strong>Packaging<\/strong>: Food containers, blister packs<\/li>\n\n\n\n<li><strong>Technology<\/strong>: Laptop chassis, smartphone frames, hard drive enclosures<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Frequently Asked Questions (FAQs)<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q1: Is aluminium an element or a compound?<\/strong><br>A: An <strong>element<\/strong>. It\u2019s made of only one type of atom with 13 protons.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q2: Which element is a semiconductor \u2013 germanium, aluminium, tin, or iodine?<\/strong><br>A: <strong>Germanium<\/strong> is a semiconductor. The rest are not.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q3: Is aluminium foil pure aluminium?<\/strong><br>A: Yes, usually over 99% pure, with a thin protective oxide layer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q4: Which element has 25 protons?<\/strong><br>A: <strong>Manganese (Mn)<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q5: What type of element is aluminium?<\/strong><br>A: A <strong>metal<\/strong> (post-transition metal).<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q6: Can aluminium rust like iron?<\/strong><br>A: No. It oxidizes, but the oxide layer acts as a protective shield instead of flaking away like rust.<\/p><script>document.addEventListener(\"DOMContentLoaded\",function(){\n        if(window.innerWidth <= 768){\n            if (\"immediate\" === \"delay\") {\n                setTimeout(function(){document.querySelectorAll(\".pai-ad\").forEach(el=>el.style.visibility=\"visible\")},0);\n            } else if (\"immediate\" === \"scroll\") {\n                window.addEventListener(\"scroll\",function(){\n                    let s=window.scrollY\/(document.body.scrollHeight-window.innerHeight);\n                    if(s>0.1){\n                        document.querySelectorAll(\".pai-ad\").forEach(el=>el.style.visibility=\"visible\");\n                    }\n                });\n            } else {\n                document.querySelectorAll(\".pai-ad\").forEach(el=>el.style.visibility=\"visible\");\n            }\n        } else {\n            document.querySelectorAll(\".pai-ad\").forEach(el=>el.remove());\n        }\n    });<\/script>","protected":false},"excerpt":{"rendered":"<p>Aluminium (symbol Al, atomic number 13) might be hiding in your kitchen foil, your laptop casing, or the body of your car \u2014 but it\u2019s far more important than most people realize.It\u2019s the most abundant metal in Earth\u2019s crust and one of the most versatile materials in modern life \u2014 lightweight, corrosion-resistant, and endlessly recyclable. &#8230; <a title=\"Aluminium Element: Symbol, Properties, Uses, and Surprising Facts\" class=\"read-more\" href=\"https:\/\/aluminiummagazine.com\/mag\/aluminium\/aluminium-element-symbol-facts-uses.html\" aria-label=\"Read more about Aluminium Element: Symbol, Properties, Uses, and Surprising Facts\">Read more<\/a><\/p>\n","protected":false},"author":12,"featured_media":14952,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[721],"tags":[],"class_list":["post-14951","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aluminium"],"_links":{"self":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/posts\/14951","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/comments?post=14951"}],"version-history":[{"count":0,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/posts\/14951\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/media\/14952"}],"wp:attachment":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/media?parent=14951"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/categories?post=14951"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/tags?post=14951"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}