{"id":2620,"date":"2025-06-27T16:19:54","date_gmt":"2025-06-27T10:49:54","guid":{"rendered":"https:\/\/texpertssolutions.com\/notes\/?p=2620"},"modified":"2025-06-29T16:44:51","modified_gmt":"2025-06-29T11:14:51","slug":"actinium-ac","status":"publish","type":"post","link":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/actinium-ac\/","title":{"rendered":"Actinium (Ac)"},"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>: Actinium<\/li>\n\n\n\n<li><strong>Discovered By<\/strong>: Friedrich Oskar Giesel<\/li>\n\n\n\n<li><strong>Year of Discovery<\/strong>: 1899<\/li>\n\n\n\n<li><strong>Category<\/strong>: Actinide (Radioactive Metal)<\/li>\n\n\n\n<li><strong>Group<\/strong>: f-block<\/li>\n\n\n\n<li><strong>State at Room Temperature<\/strong>: Solid (silvery-white metal) \u2699\ufe0f<\/li>\n<\/ul>\n\n\n\n<p>Actinium is a <strong>radioactive metal<\/strong> found in uranium ores and is the first element in the actinide series.<\/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>: Ac<\/li>\n\n\n\n<li><strong>Atomic Number<\/strong>: 89<\/li>\n\n\n\n<li><strong>Atomic Mass<\/strong>: ~227.03 u<\/li>\n\n\n\n<li><strong>Valency<\/strong>: +3<\/li>\n\n\n\n<li><strong>Electronic Configuration<\/strong>: [Rn] 6d\u00b9 7s\u00b2<\/li>\n<\/ul>\n\n\n\n<p>Actinium is highly radioactive and reacts quickly with oxygen and moisture.<\/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>Actinium glows faintly in the dark due to its radioactivity and has been used in <strong>radiation therapy<\/strong> for cancer treatment.<\/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>Named from the Greek word <em>\u201caktinos\u201d<\/em> meaning \u201cray\u201d because of its strong radioactivity \u26a1<\/li>\n\n\n\n<li>It was the <strong>first of the actinides discovered<\/strong><\/li>\n\n\n\n<li>Extremely rare and mostly obtained from decay of uranium and thorium ores \ud83c\udf0d<\/li>\n\n\n\n<li>Used as a <strong>radiation source<\/strong> in scientific instruments and cancer treatment \ud83c\udfe5<\/li>\n\n\n\n<li>Glows blue due to its radioactive emissions \ud83d\udc99<\/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>Cancer Treatment<\/strong>: Used in targeted alpha therapy (TAT) for certain cancers \ud83c\udfaf\ud83e\ude7a<\/li>\n\n\n\n<li><strong>Scientific Research<\/strong>: Studied for its radioactive properties and behavior \u269b\ufe0f\ud83d\udd2c<\/li>\n\n\n\n<li><strong>Radiation Source<\/strong>: Used in neutron sources and measuring instruments \ud83d\udd27<\/li>\n\n\n\n<li><strong>Tracer Element<\/strong>: Helps in understanding geological and environmental processes \ud83c\udf3f\ud83c\udf0e<\/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>Actinium is a <strong>rare and powerful radioactive element<\/strong> playing an important role in medicine and research. For students, it highlights how radioactivity can be both useful and fascinating! \ud83c\udf1f\u269b\ufe0f<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udd39 Basic Information Actinium is a radioactive metal found in uranium ores and is the first &hellip; <a title=\"Actinium (Ac)\" class=\"hm-read-more\" href=\"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/actinium-ac\/\"><span class=\"screen-reader-text\">Actinium (Ac)<\/span>Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":2697,"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-2620","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":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/texpertssolutions.com\/notes\/wp-content\/uploads\/2025\/06\/56.png?fit=1280%2C720&ssl=1","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2620","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/comments?post=2620"}],"version-history":[{"count":1,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2620\/revisions"}],"predecessor-version":[{"id":2623,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2620\/revisions\/2623"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/media\/2697"}],"wp:attachment":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/media?parent=2620"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/categories?post=2620"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/tags?post=2620"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}