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Element

Element Abundances in the Earth's Core

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Iron

 85.5%     

Silicon

  6.0%     

Nickel

  5.20%    

Sulfur

  1.90%    

Chromium

  0.90%    

Carbon

  0.20%    

Phosphorus

  0.20%    

Hydrogen

600 ppm    

Manganese

300 ppm    

Chlorine

200 ppm    

Vanadium

150 ppm    

Copper

125 ppm    

Nitrogen

 75 ppm    

Germanium

 20 ppm    

Selenium

  8 ppm    

Platinum

  5.7 ppm  

Arsenic

  5 ppm    

Molybdenum

  5 ppm    

Ruthenium

  4 ppm    

Palladium

  3.1 ppm  

Osmium

  2.8 ppm  

Iridium

  2.6 ppm  

Tellurium

  0.85 ppm 

Rhodium

  0.74 ppm 

Bromine

  0.7 ppm  

Tin

  0.5 ppm  

Gold

  0.5 ppm  

Tungsten

  0.47 ppm 

Lead

  0.4 ppm  

Cobalt

  0.25 ppm 

Rhenium

  0.23 ppm 

Silver

  0.15 ppm 

Cadmium

  0.15 ppm 

Antimony

  0.13 ppm 

Iodine

  0.13 ppm 

Cesium

  0.065 ppm

Mercury

  0.05 ppm 

Thallium

  0.03 ppm 

Bismuth

  0.03 ppm 

Element

Abundances by Element Name in the Earth's Core

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Antimony

  0.13 ppm 

Arsenic

  5 ppm    

Bismuth

  0.03 ppm 

Bromine

  0.7 ppm  

Cadmium

  0.15 ppm 

Carbon

  0.20%    

Cesium

  0.065 ppm

Chlorine

200 ppm    

Chromium

  0.90%    

Cobalt

  0.25 ppm 

Copper

125 ppm    

Germanium

 20 ppm    

Gold

  0.5 ppm  

Hydrogen

600 ppm    

Iodine

  0.13 ppm 

Iridium

  2.6 ppm  

Iron

 85.5%     

Lead

  0.4 ppm  

Manganese

300 ppm    

Mercury

  0.05 ppm 

Molybdenum

  5 ppm    

Nickel

  5.20%    

Nitrogen

 75 ppm    

Osmium

  2.8 ppm  

Palladium

  3.1 ppm  

Phosphorus

  0.20%    

Platinum

  5.7 ppm  

Rhenium

  0.23 ppm 

Rhodium

  0.74 ppm 

Ruthenium

  4 ppm    

Selenium

  8 ppm    

Silicon

  6.0%     

Silver

  0.15 ppm 

Sulfur

  1.90%    

Tellurium

  0.85 ppm 

Thallium

  0.03 ppm 

Tin

  0.5 ppm  

Tungsten

  0.47 ppm 

Vanadium

150 ppm    

Reference    (Click the button next to a value above to see complete citation information for that entry)

McDonough, W. F. "Compositional Model for the Earth's Core." pp. 547–568 in The Mantle and Core. Edited by Richard W. Carlson. Oxford: Elsevier Ltd., 2005.

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