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Facts About Cadmium and Hafnium


Facts About Hafnium and Cadmium


Facts

Interesting Facts
  • Naturally occurring minor elements include Cadmium.
  • Cadmium is released into atmosphere to control volcanic eruption and forest fires.
  • It is used for electroplating of Steel for corrosion resistance.
  • It can absorb neutrons and used in nuclear reactor to control atomic fission.
  
  • Hafnium metal is highly reactive, hence not found free in nature.
  • Hafnium metal as predicated after Mendeleev finished his periodic table.
  

Sources
Found As a By-product, Found in Minerals, Mining   
By-product Zirconium Refining   

History
  
  

Who Discovered
Karl Samuel Leberecht Hermann and Friedrich Stromeyer   
Dirk Coster and George de Hevesy   

Discovery
In 1817   
In 1922   

Abundance
  
  

Abundance In Universe
2 * 10-7 %   
22
7 * 10-8 %   
25

Abundance In Sun
~0.0000006 %   
21
~0.0000001 %   
26

Abundance In Meteorites
0.00 %   
31
0.00 %   
37

Abundance In Earth's Crust
0.00 %   
99+
0.00 %   
31

Abundance In Oceans
0.00 %   
28
0.00 %   
27

Abundance In Humans
0.00 %   
11
Not Available   

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