Facts About Protactinium and Polonium
Interesting Facts
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
  
- Polonium was the first radioactive element to be discovered.
- Polonium element and its compounds are highly radioactive.
- Its alloy with Beryllium provides source of neutrons.
  
Sources
Found in Uranium Ores, Mining, Ores of metals
  
Mining, Ores of metals
  
History
  
  
Who Discovered
William Crookes
  
Pierre Curie and Marie Curie
  
Discovery
In 1900
  
In 1898
  
Abundance
  
  
Abundance In Earth's Crust
Not Available