{"id":2469,"date":"2025-06-27T14:30:48","date_gmt":"2025-06-27T09:00:48","guid":{"rendered":"https:\/\/texpertssolutions.com\/notes\/?p=2469"},"modified":"2025-06-29T16:44:54","modified_gmt":"2025-06-29T11:14:54","slug":"strontium-sr","status":"publish","type":"post","link":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/strontium-sr\/","title":{"rendered":"Strontium (Sr)"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">\ud83d\udd39 Basic Information<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Element Name<\/strong>: Strontium<\/li>\n\n\n\n<li><strong>Discovered By<\/strong>: Adair Crawford &amp; William Cruickshank<\/li>\n\n\n\n<li><strong>Year of Discovery<\/strong>: 1790<\/li>\n\n\n\n<li><strong>Category<\/strong>: Alkaline Earth Metal<\/li>\n\n\n\n<li><strong>Group<\/strong>: 2 (Group IIA \u2013 Alkaline Earth Metals)<\/li>\n\n\n\n<li><strong>State at Room Temperature<\/strong>: Solid (soft, silvery metal) \u2699\ufe0f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Strontium is a <strong>soft, silvery metal<\/strong> that\u2019s part of the <strong>alkaline earth metals<\/strong> family. It\u2019s known for its <strong>bright red flame<\/strong> when burned and is often used in <strong>fireworks and flares<\/strong>! \ud83c\udf86<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd38 Chemical Properties<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chemical Symbol<\/strong>: Sr<\/li>\n\n\n\n<li><strong>Atomic Number<\/strong>: 38<\/li>\n\n\n\n<li><strong>Atomic Mass<\/strong>: ~87.62 u<\/li>\n\n\n\n<li><strong>Valency<\/strong>: 2<\/li>\n\n\n\n<li><strong>Electronic Configuration<\/strong>: [Kr] 5s\u00b2<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Strontium is <strong>highly reactive<\/strong>, especially with water and air. It quickly forms a white oxide layer and reacts with water to produce <strong>hydrogen gas<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udcd8 Basic Things to Know<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Strontium is <strong>never found alone in nature<\/strong> \u2014 it\u2019s found in minerals like <strong>celestine<\/strong> and <strong>strontianite<\/strong>. It was named after the village <strong>Strontian in Scotland<\/strong>, where it was first identified.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the body, strontium is <strong>chemically similar to calcium<\/strong> and can even be found in bones in small amounts.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\udd14 Interesting Facts<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Strontium burns with a <strong>bright red flame<\/strong>, making it perfect for <strong>red fireworks<\/strong> and signal flares. \ud83c\udf87<\/li>\n\n\n\n<li>It was once used in <strong>CRT televisions<\/strong> to block harmful X-rays. \ud83d\udcfa<\/li>\n\n\n\n<li>Strontium-90, a radioactive form, is a <strong>by-product of nuclear reactions<\/strong> and can be dangerous. \u2622\ufe0f<\/li>\n\n\n\n<li>In trace amounts, strontium is found in <strong>bones and teeth<\/strong>, similar to calcium. \ud83e\uddb4<\/li>\n\n\n\n<li>It\u2019s used in <strong>fluorescent lights<\/strong> and even in <strong>dental care research<\/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\">\ud83d\udd27 Common Uses<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fireworks<\/strong>: Gives off a <strong>bright red color<\/strong> \u2014 one of its most famous uses! \ud83c\udf86<\/li>\n\n\n\n<li><strong>Signal Flares<\/strong>: Used in <strong>emergency and military<\/strong> signaling due to its strong red flame. \ud83d\udea8<\/li>\n\n\n\n<li><strong>Medical Field<\/strong>: Strontium ranelate is studied for use in <strong>bone health treatments<\/strong>. \ud83d\udc8a<\/li>\n\n\n\n<li><strong>Glass Manufacturing<\/strong>: Added to glass for <strong>TV tubes and certain lenses<\/strong>. \ud83d\udd0d<\/li>\n\n\n\n<li><strong>Nuclear Industry<\/strong>: Strontium-90 is used in <strong>radioisotope thermoelectric generators<\/strong> (RTGs).<\/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\">\ud83d\udcda Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Strontium is a <strong>bright and reactive metal<\/strong> that adds color to the sky and strength to science. From dazzling fireworks to medical research, strontium shows how chemistry plays a part in <strong>entertainment, safety, and health<\/strong>. For students, it\u2019s a cool example of how <strong>science lights up our world \u2014 literally!<\/strong> \ud83d\udd2c\ud83c\udf87<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udd39 Basic Information Strontium is a soft, silvery metal that\u2019s part of the alkaline earth metals family. It\u2019s known for its bright red flame when burned and is often used in fireworks and flares! \ud83c\udf86 \ud83d\udd38 Chemical Properties Strontium is highly reactive, especially with water and air. It quickly forms a white oxide layer and&#8230;<\/p>\n","protected":false},"author":1,"featured_media":2783,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[672],"tags":[656,652,653,661,647,643,648,670,666,664,662,650,651,645,660,663,655,646,657,659,658,665,642,644,668,669,667,649,671,654],"class_list":["post-2469","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-periodic-table-for-students","tag-actinides","tag-alkali-metals","tag-alkaline-earth-metals","tag-atomic-mass","tag-atomic-number","tag-chemical-elements","tag-chemical-symbols","tag-chemistry-basics","tag-chemistry-study-guide","tag-electron-configuration","tag-electronegativity","tag-element-groups","tag-element-periods","tag-element-properties","tag-halogens","tag-ionization-energy","tag-lanthanides","tag-mendeleev-periodic-table","tag-metalloids","tag-noble-gases","tag-nonmetals","tag-oxidation-states","tag-periodic-table","tag-periodic-table-elements","tag-periodic-table-explained","tag-periodic-table-facts","tag-periodic-table-for-students","tag-periodic-trends","tag-science-education","tag-transition-metals"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\ud83d\udd39 Basic Information Element Name: Strontium Discovered By: Adair Crawford &amp; William Cruickshank Year of Discovery: 1790 Category: Alkaline Earth Metal Group: 2 (Group IIA \u2013 Alkaline Earth Metals) State at Room Temperature: Solid (soft, silvery metal) \u2699\ufe0f Strontium is a soft, silvery metal that\u2019s part of the alkaline earth metals family. 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