Facts About Promethium and Roentgenium
Interesting Facts
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
Not Available
Sources
Found in Minerals, Mining
Synthetically Produced
Who Discovered
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Gesellschaft für Schwerionenforschung
Discovery
In 1942
In 1994