Facts About Polonium and Protactinium
Interesting Facts
- 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.
  
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
  
Sources
Mining, Ores of metals
  
Found in Uranium Ores, Mining, Ores of metals
  
History
  
  
Who Discovered
Pierre Curie and Marie Curie
  
William Crookes
  
Discovery
In 1898
  
In 1900
  
Abundance
  
  
Abundance In Earth's Crust
Not Available