Facts About Protactinium and Radium
Interesting Facts
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
  
- Radium metal is the heaviest metal of Alkaline earth metals column.
- Radium metal is highly radioactive and does not have any stable isotopes.
  
Sources
Found in Uranium Ores, Mining, Ores of metals
  
Mining, Ores of metals
  
History
  
  
Who Discovered
William Crookes
  
Not Available
  
Discovery
In 1900
  
In 1898
  
Abundance
  
  
Abundance In Earth's Crust
Abundance In Humans
Not Available