Facts About Potassium and Rubidium
Interesting Facts
- In the list of most abundant element Potassium is ranked 7th.
- Potassium can easily be sliced (chopped) down using knife.
  
- 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 Minerals, Mining
  
Obtained from Lithium Production.
  
History
  
  
Who Discovered
Humphry Davy
  
Robert Bunsen and Gustav Kirchhoff
  
Discovery
In 1807
  
In 1861
  
Abundance
  
  
Abundance In Sun
~0.000003 %
  
17
Abundance In Earth's Crust