Fermium meaning

fûrmē-əm, fĕr-
A synthetic transuranic metallic element having over 20 isotopes and isomers with mass numbers ranging from 242 to 260. The longest-lived isotope has mass number 257 and a half-life of approximately 100 days. Atomic number 100; melting point 1527°C; valence 3.
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A radioactive, metallic chemical element, one of the actinides, produced by intense neutron bombardment of plutonium, as in a cyclotron: symbol, Fm; at. no. 100
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A synthetic, radioactive metallic element of the actinide series that is produced from plutonium or uranium. Its most stable isotope is Fm 257 with a half-life of approximately 100 days. Atomic number 100.
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A transuranic chemical element (symbol Fm) with an atomic number of 100.
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Origin of fermium

  • After Enrico Fermi

    From American Heritage Dictionary of the English Language, 5th Edition

  • Named for Enrico Fermi.

    From Wiktionary