berkelium
noun /bɜːˈkiːliəm/, /ˈbɜːkliəm/
/ˈbɜːrkliəm/
[uncountable] (symbol Bk)
- a chemical element. Berkelium is a radioactive metal that is produced artificially from americium and helium.
锫(放射性元素) 词源1949: from Berkeley, a city in western California, USA (where it was first made) + -ium.