{"id":2563,"date":"2025-06-27T16:13:31","date_gmt":"2025-06-27T10:43:31","guid":{"rendered":"https:\/\/texpertssolutions.com\/notes\/?p=2563"},"modified":"2025-06-29T16:44:51","modified_gmt":"2025-06-29T11:14:51","slug":"thulium-tm","status":"publish","type":"post","link":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/thulium-tm\/","title":{"rendered":"Thulium (Tm)"},"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>: Thulium<\/li>\n\n\n\n<li><strong>Discovered By<\/strong>: Per Teodor Cleve<\/li>\n\n\n\n<li><strong>Year of Discovery<\/strong>: 1879<\/li>\n\n\n\n<li><strong>Category<\/strong>: Lanthanide (Rare Earth 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-gray metal) \u2699\ufe0f<\/li>\n<\/ul>\n\n\n\n<p>Thulium is one of the <strong>least abundant rare earth elements<\/strong>, but it&#8217;s very useful in <strong>medical and laser technology<\/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\udd38 Chemical Properties<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chemical Symbol<\/strong>: Tm<\/li>\n\n\n\n<li><strong>Atomic Number<\/strong>: 69<\/li>\n\n\n\n<li><strong>Atomic Mass<\/strong>: ~168.93 u<\/li>\n\n\n\n<li><strong>Valency<\/strong>: +3<\/li>\n\n\n\n<li><strong>Electronic Configuration<\/strong>: [Xe] 4f\u00b9\u00b3 6s\u00b2<\/li>\n<\/ul>\n\n\n\n<p>Thulium is soft, malleable, and slowly tarnishes in air. It forms mostly pale green or bluish compounds.<\/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>Thulium is <strong>non-toxic<\/strong>, easy to shape, and has a few <strong>specialized but powerful applications<\/strong> in science and healthcare.<\/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 after <strong>Thule<\/strong>, an ancient name for Scandinavia. \ud83c\udf0d<\/li>\n\n\n\n<li>It\u2019s one of the <strong>rarest lanthanides<\/strong>, but still more common than gold! \ud83d\udfe1<\/li>\n\n\n\n<li>Thulium is used in <strong>portable X-ray machines<\/strong>, especially in remote or emergency settings. \ud83e\ude7b<\/li>\n\n\n\n<li>Tm lasers are also used in <strong>eye surgery and medical procedures<\/strong>. \ud83d\udc41\ufe0f\ud83d\udca1<\/li>\n\n\n\n<li>It glows blue-green in some compounds under UV light! \ud83d\udc99\ud83d\udc9a<\/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>Medical Lasers<\/strong>: For <strong>surgery and treatment<\/strong> in skin, eyes, and soft tissues. \ud83d\udd2c\ud83d\udca1<\/li>\n\n\n\n<li><strong>X-ray Devices<\/strong>: Thulium-170 isotope is used in compact X-ray machines. \ud83e\ude7b<\/li>\n\n\n\n<li><strong>High-Tech Applications<\/strong>: In electronics, magnetic materials, and some semiconductors. \ud83d\udcbb\ud83d\udd27<\/li>\n\n\n\n<li><strong>Lighting<\/strong>: Adds color and glow to some lamps and lighting devices. \ud83d\udca1<\/li>\n\n\n\n<li><strong>Research<\/strong>: Valuable for advanced laser and optical technologies.<\/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>Thulium is a <strong>rare, gentle metal<\/strong> that shines brightly in <strong>medical and high-tech fields<\/strong>. For students, it shows how even the rarest elements can have <strong>life-saving and futuristic uses<\/strong>! \u2728\ud83d\udca0<\/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 Thulium is one of the least abundant rare earth elements, but it&#8217;s very &hellip; <a title=\"Thulium (Tm)\" class=\"hm-read-more\" href=\"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/thulium-tm\/\"><span class=\"screen-reader-text\">Thulium (Tm)<\/span>Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":2734,"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-2563","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\/93.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\/2563","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=2563"}],"version-history":[{"count":1,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2563\/revisions"}],"predecessor-version":[{"id":2607,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2563\/revisions\/2607"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/media\/2734"}],"wp:attachment":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/media?parent=2563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/categories?post=2563"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/tags?post=2563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}