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Facts About Chromium and Francium


Facts About Francium and Chromium


Facts

Interesting Facts
  • Chromium is highly reactive, hence it is not found free in nature.
  • Ores of Chromites mineral are the major source of Chromium metal.
  • Almost 90% leather tanning is done with the help of chromium.
  
  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
  

Sources
Found in Minerals, Mining, Ores of metals, Ores of Minerals   
Formed by Decay Process, Mining   

History
  
  

Who Discovered
Louis Nicolas Vauquelin   
Marguerite Perey   

Discovery
In Between 1797 - 1798   
In 1939   

Abundance
  
  

Abundance In Universe
1.5 * 10-3 %   
7
Not Available   

Abundance In Sun
~0.002 %   
7
~-9999 %   

Abundance In Meteorites
0.30 %   
7
Not Available   

Abundance In Earth's Crust
0.01 %   
13
Not Available   

Abundance In Oceans
0.00 %   
16
Not Available   

Abundance In Humans
0.00 %   
16
Not Available   

Uses >>
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