Facts About Protactinium and Gold
Interesting Facts
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
  
- It is found in copper ores and from the crust of the earth.
- It is the most malleable and ductile metal.
- Gold alloys are used in Dentistry as fillings, crowning, clips, etc. It is also used as an artificial limb joints.
  
Sources
Found in Uranium Ores, Mining, Ores of metals
  
Earth's crust, Mining, Ores of metals
  
History
  
  
Who Discovered
William Crookes
  
Unknown
  
Discovery
In 1900
  
Before 6000 BCE
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~-9999 %
  
~0.0000001 %
  
26
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Abundance In Humans
Not Available