Meaning Of The Word Prometheum
What's the definition of Prometheum? Find Prometheum meanings, definitions and more at the Real Dictionary online.
Prometheum Meaning
| Prometheum Definition |
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What's The Definition Of Prometheum?
prometheum in British English
noun noun: a radioactive element of the lanthanide series artificially produced by the fission of uranium. Symbol: Pm; atomic no: 61; half-life of most stable isotope, 145Pm: 17.7 years; valency: 3; melting pt: 1042°C; boiling pt: 2460°C (approx.) |
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