Facts About Promethium and Fermium
Interesting Facts
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
  
- Fermium metal is highly radioactive in nature.
- Fermium is synthetically produced metal.
  
Sources
Found in Minerals, Mining
  
Bombarding Pu-239 with Neutrons
  
History
  
  
Who Discovered
Chien Shiung Wu, Emilio Segrè, Hans Bethe
  
Lawrence Berkeley National Laboratory
  
Discovery
In 1942
  
In 1952
  
Abundance