Facts About Californium and Francium
Interesting Facts
- Californium metal is very harmful and highly radioactive.
- Californium metal is the heaviest metal.
  
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
  
Sources
Made by Bombarding Curium with Helium Ions
  
Formed by Decay Process, Mining
  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory
  
Marguerite Perey
  
Discovery
In 1950
  
In 1939
  
Abundance