Facts About Protactinium and Rubidium
Interesting Facts
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
  
- Rubidium metal is 16th most common element found in the earth crust.
- Rubidium metal also found in minerals as well as seawater.
  
Sources
Found in Uranium Ores, Mining, Ores of metals
  
Obtained from Lithium Production.
  
History
  
  
Who Discovered
William Crookes
  
Robert Bunsen and Gustav Kirchhoff
  
Discovery
In 1900
  
In 1861
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~-9999 %
  
~0.000003 %
  
17
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Abundance In Humans
Not Available