Facts About Roentgenium and Protactinium
Interesting Facts
Not Available
  
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
  
Sources
Synthetically Produced
  
Found in Uranium Ores, Mining, Ores of metals
  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung
  
William Crookes
  
Discovery
In 1994
  
In 1900
  
Abundance
  
  
Abundance In Earth's Crust
Not Available
  
Abundance In Oceans
Not Available