Facts About Promethium and Californium
Interesting Facts
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
- Californium metal is very harmful and highly radioactive.
- Californium metal is the heaviest metal.
Sources
Found in Minerals, Mining
Made by Bombarding Curium with Helium Ions
Who Discovered
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Lawrence Berkeley National Laboratory
Discovery
In 1942
In 1950