English Dictionary: nobelium | by the DICT Development Group |
2 results for nobelium | |
From WordNet (r) 3.0 (2006) [wn]: | |
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From The Elements (22Oct97) [elements]: | |
nobelium Symbol: No Atomic number: 102 Atomic weight: (254) Radioactive metallic transuranic element, belongs to the actinoids. Seven known isotopes exist, the most stable being No-254 with a half-life of 255 seconds. First identified with certainty by Albert Ghiorso and Glenn T. Seaborg in 1966. {Unnilbium} has been proposed as an alternative name. |