Facts About Protactinium and Europium
Interesting Facts
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
  
Not Available
  
Sources
Found in Uranium Ores, Mining, Ores of metals
  
Found in Minerals, Mining, Ores of Minerals
  
History
  
  
Who Discovered
William Crookes
  
Eugène-Anatole Demarçay
  
Discovery
In 1900
  
In 1896
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~-9999 %
  
~0.00000005 %
  
27
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust