Facts About Protactinium and Curium
Interesting Facts
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
  
- Curium metal does not occur free in nature.
- Curium metal is a synthetically produced metal.
  
Sources
Found in Uranium Ores, Mining, Ores of metals
  
Bombarding Plutonium with Helium Ions
  
History
  
  
Who Discovered
William Crookes
  
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso
  
Discovery
In 1900
  
In 1944
  
Abundance
  
  
Abundance In Earth's Crust
Not Available
  
Abundance In Oceans
Not Available