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De - Pt| English Dictionary: Fermium | by the DICT Development Group |
| 2 results for Fermium | |
| From WordNet (r) 3.0 (2006) [wn]: | |
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| From The Elements (22Oct97) [elements]: | |
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fermium Symbol: Fm Atomic number: 100 Atomic weight: (253) Radioactive metallic transuranic element, belongs to the actinoids. Ten known isotopes, most stable is Fm-257 with a half-life of 10 days. First identified by Albert Ghiorso and associates in the debris of the first hydrogen-bomb explosion in 1952. | |
