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Facts About Holmium and Praseodymium


Facts About Praseodymium and Holmium


Facts

Interesting Facts
  • Holmium metal is very soft and malleable.
  • Holmium metal is well known for its corrosion resistivity.
  
  • Praseodymium metal is synthetically produced metal.
  • Praseodymium is used as possible fuel for radioactive generators.
  

Sources
Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Marc Delafontaine   
Not Available   

Discovery
In 1878   
In 1885   

Abundance
  
  

Abundance In Universe
5 * 10-8 %   
27
2 * 10-7 %   
22

Abundance In Sun
~-9999 %   
~0.0000001 %   
26

Abundance In Meteorites
0.00 %   
99+
0.00 %   
40

Abundance In Earth's Crust
0.00 %   
38
0.00 %   
27

Abundance In Oceans
0.00 %   
99+
0.00 %   
39

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