Nobelium definition

nō-bĕlē-əm
A radioactive transuranic element in the actinide series artificially produced in trace amounts. Its most long-lived isotopes are No-255 with a half-life of 3.1 minutes, and No-259 with a half-life of 58 minutes. Atomic number 102; valence 2, 3.
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A radioactive, metallic chemical element, one of the actinides, produced by the nuclear bombardment of curium: symbol, No; at. no. 102
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A synthetic, radioactive metallic element in the actinide series that is produced by bombarding curium with carbon ions. Its longest-lived isotope is No 255 with a half-life of 3.1 minutes. Atomic number 102.
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A transuranic chemical element (symbol No) with an atomic number of 102.
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Origin of nobelium

  • After Alfred Bernhard Nobel

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

  • Named for Alfred Nobel.

    From Wiktionary