Berkelium: historical information

  • Discoveror: Glenn T. Seaborg, Stanley G. Thompson, Albert Ghiorso
  • Place of discovery: USA
  • Date of discovery: 1949
  • Origin of name : named after "Berkeley", a city in California, home of the University of California, USA.

Berkelium was discovered in December 1949 at Berkeley, Californi, USA, by Ghiorso and others by cyclotron bombardment of milligram amounts of americium with helium ions. Perhaps the first visible amounts of a pure berkelium compound, berkelium chloride, was produced in 1962. It weighed just 3 billionth of a gram.

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