ber·ke·li·um (b r-k  l-m, bûrkl-m)n. Symbol Bk A synthetic transuranic radioactive element having 9 isotopes with mass numbers from 243 to 250 and half-lives from 3 hours to 1,380 years. Atomic number 97; melting point 986°C; valence 3, 4. See Table at element. [After Berkeley, California.] |
berkelium [bɜːˈkiːlɪəm ˈbɜːklɪəm]
n
(Physics / Nuclear Physics) a metallic transuranic element produced by bombardment of americium. Symbol: Bk; atomic no.: 97; half-life of most stable isotope, 247Bk: 1400 years; valency: 3 or 4; relative density: 14 (est.)
[named after Berkeley, where it was discovered]
| berkelium (br-kl-m, bûrkl-m) Symbol Bk A synthetic, radioactive metallic element of the actinide series that is produced from americium, curium, or plutonium. Its most stable isotope has a half-life of about 1,400 years. Atomic number 97; melting point 986°C; valence 3, 4. See Periodic Table. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | berkelium - a radioactive transuranic element; discovered by bombarding americium with helium metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. |
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