promethium
Named for the Greek Titan who stole fire from Zeus and gave it to humanity, glow-in-the-dark promethium is a highly radioactive, rare earth ...,Promethium (61Pm) is an artificial element, except in trace quantities as a product of spontaneous fission ofU andU and alpha decay ofEu, and thus a standard ... ,Promethium is a chemical element with symbol Pm and atomic number 61. It has a number of isotypes, most of which are radioactive and relatively short-lived. ,Promethium. Promethium is a rare-earth metal that emits beta radius. It is very radoiactive and rare, so it is little studied: its chemical and physical properties are ... ,Element Promethium (Pm), Group 19, Atomic Number 61, f-block, Mass [145]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and ... ,Symbol, Pm. Latin name, Promethium. Atomic number, 61. Period, 6. Element category, Inner transition elements. Relative atomic mass, 146.9151. Group, III.B. ,Promethium is a chemical element with the symbol Pm and atomic number 61. All of its isotopes are radioactive; it is extremely rare, with only about 500–600 ... ,Promethium (Pm), chemical element, the only rare-earth metal of the lanthanide series of the periodic table not found in nature on Earth. Conclusive chemical ... ,Promethium's most stable isotope, promethium-145, has a half-life of 17.7 years. It decays into neodymium-145 through electron capture. Jefferson Lab, U.S. ...
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 promethium 相關參考資料
Facts About Promethium | Live Science
Named for the Greek Titan who stole fire from Zeus and gave it to humanity, glow-in-the-dark promethium is a highly radioactive, rare earth ... https://www.livescience.com Isotopes of promethium - Wikipedia
Promethium (61Pm) is an artificial element, except in trace quantities as a product of spontaneous fission ofU andU and alpha decay ofEu, and thus a standard ... https://en.wikipedia.org Promethium (disambiguation) - Wikipedia
Promethium is a chemical element with symbol Pm and atomic number 61. It has a number of isotypes, most of which are radioactive and relatively short-lived. https://en.wikipedia.org Promethium (Pm) - Chemical properties, Health and ...
Promethium. Promethium is a rare-earth metal that emits beta radius. It is very radoiactive and rare, so it is little studied: its chemical and physical properties are ... https://www.lenntech.com Promethium - Element information, properties and uses ...
Element Promethium (Pm), Group 19, Atomic Number 61, f-block, Mass [145]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and ... https://www.rsc.org Promethium - Periodic Table
Symbol, Pm. Latin name, Promethium. Atomic number, 61. Period, 6. Element category, Inner transition elements. Relative atomic mass, 146.9151. Group, III.B. https://pt.kle.cz Promethium - Wikipedia
Promethium is a chemical element with the symbol Pm and atomic number 61. All of its isotopes are radioactive; it is extremely rare, with only about 500–600 ... https://en.wikipedia.org Promethium | chemical element | Britannica
Promethium (Pm), chemical element, the only rare-earth metal of the lanthanide series of the periodic table not found in nature on Earth. Conclusive chemical ... https://www.britannica.com Promethium | Pm (Element) - PubChem
Promethium's most stable isotope, promethium-145, has a half-life of 17.7 years. It decays into neodymium-145 through electron capture. Jefferson Lab, U.S. ... https://pubchem.ncbi.nlm.nih.g |