{"id":2658,"date":"2025-06-27T16:49:59","date_gmt":"2025-06-27T11:19:59","guid":{"rendered":"https:\/\/texpertssolutions.com\/notes\/?p=2658"},"modified":"2025-06-29T16:44:50","modified_gmt":"2025-06-29T11:14:50","slug":"californium-cf","status":"publish","type":"post","link":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/californium-cf\/","title":{"rendered":"Californium (Cf)"},"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>: Californium<\/li>\n\n\n\n<li><strong>Discovered By<\/strong>: Stanley G. Thompson, Glenn T. Seaborg, Kenneth Street Jr., and Albert Ghiorso<\/li>\n\n\n\n<li><strong>Year of Discovery<\/strong>: 1950<\/li>\n\n\n\n<li><strong>Category<\/strong>: Actinide Series \/ Radioactive Metal<\/li>\n\n\n\n<li><strong>Group<\/strong>: Actinides (no formal group number)<\/li>\n\n\n\n<li><strong>State at Room Temperature<\/strong>: Solid \ud83e\uddca<\/li>\n<\/ul>\n\n\n\n<p>Californium is a <strong>synthetic radioactive element<\/strong> named after the state of <strong>California<\/strong> and the <strong>University of California, Berkeley<\/strong>, where it was discovered.<\/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>: Cf<\/li>\n\n\n\n<li><strong>Atomic Number<\/strong>: 98<\/li>\n\n\n\n<li><strong>Atomic Mass<\/strong>: ~251 u<\/li>\n\n\n\n<li><strong>Valency<\/strong>: +3 (most stable), +2<\/li>\n\n\n\n<li><strong>Electronic Configuration<\/strong>: [Rn] 5f\u00b9\u2070 7s\u00b2<\/li>\n<\/ul>\n\n\n\n<p>Californium forms <strong>Cf\u00b3\u207a ions<\/strong> and reacts slowly with oxygen, water, and acids, but not with alkalis. It is highly radioactive and must be handled with care.<\/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>Californium was the <strong>sixth transuranic element<\/strong> to be synthesized. It&#8217;s produced in <strong>nuclear reactors or particle accelerators<\/strong> by bombarding <strong>curium<\/strong> with neutrons.<\/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><strong>Californium-252<\/strong> is a powerful <strong>neutron emitter<\/strong>, one of the strongest known! \ud83d\udca5<\/li>\n\n\n\n<li>Just 1 microgram of Cf-252 can release <strong>170 million neutrons per minute<\/strong><\/li>\n\n\n\n<li>It&#8217;s used to <strong>start up nuclear reactors<\/strong> and detect <strong>gold and silver in mines<\/strong><\/li>\n\n\n\n<li>Extremely <strong>expensive and rare<\/strong> \u2014 costs millions of dollars per gram \ud83d\udcb8<\/li>\n\n\n\n<li>Highly radioactive and <strong>glows faintly<\/strong> due to alpha decay \u2728<\/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<p>\u2714\ufe0f <strong>Neutron Source<\/strong>:<br>Used in <strong>neutron radiography<\/strong>, moisture gauges, and <strong>oil exploration<\/strong><\/p>\n\n\n\n<p>\u2714\ufe0f <strong>Nuclear Reactor Starter<\/strong>:<br>Helps initiate <strong>chain reactions<\/strong> in nuclear reactors \u269b\ufe0f<\/p>\n\n\n\n<p>\u2714\ufe0f <strong>Medical &amp; Scientific Research<\/strong>:<br>Used in <strong>cancer treatments<\/strong> and research involving <strong>neutron activation analysis<\/strong><\/p>\n\n\n\n<p>\u2714\ufe0f <strong>Metal &amp; Mineral Detection<\/strong>:<br>Helps detect <strong>precious metals<\/strong> and analyze <strong>rock composition<\/strong> in mining<\/p>\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>Californium is a <strong>powerful and rare synthetic element<\/strong> with <strong>significant uses in science, medicine, and industry<\/strong>. Though not found in everyday life, it plays a key role in <strong>nuclear research and technology<\/strong>. For students, it\u2019s a symbol of how advanced elements can make a huge impact, even in the smallest amounts. \u269b\ufe0f\ud83c\udf0d<\/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 Californium is a synthetic radioactive element named after the state of California and &hellip; <a title=\"Californium (Cf)\" class=\"hm-read-more\" href=\"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/californium-cf\/\"><span class=\"screen-reader-text\">Californium (Cf)<\/span>Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":2771,"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-2658","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\/12-1.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\/2658","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=2658"}],"version-history":[{"count":1,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2658\/revisions"}],"predecessor-version":[{"id":2668,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2658\/revisions\/2668"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/media\/2771"}],"wp:attachment":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/media?parent=2658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/categories?post=2658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/tags?post=2658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}