Facts About Protactinium and Thallium
Interesting Facts
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
  
- Compounds of Thallium metal are highly Toxic.
- Thallium metal is being suspected as a human carcinogen.
  
Sources
Found in Uranium Ores, Mining, Ores of metals
  
Found As a By-product, Ores of metals, Ores of Minerals
  
History
  
  
Who Discovered
William Crookes
  
William Crookes
  
Discovery
In 1900
  
In 1861
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~-9999 %
  
~0.0000001 %
  
26
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust