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Facts About Thorium and Praseodymium


Facts About Praseodymium and Thorium


Facts

Interesting Facts
  • Thorium metal is used as an alternate option over Uranium for nuclear fuel.
  • Thorium metals appearance (silvery white, soft) is somewhat similar to Lead metal.
  
  • Praseodymium metal is synthetically produced metal.
  • Praseodymium is used as possible fuel for radioactive generators.
  

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

History
  
  

Who Discovered
Jöns Jakob Berzelius   
Not Available   

Discovery
In 1829   
In 1885   

Abundance
  
  

Abundance In Universe
3 * 10-4 %   
9
2 * 10-7 %   
22

Abundance In Sun
~0.0004 %   
9
~0.0000001 %   
26

Abundance In Meteorites
0.05 %   
11
0.00 %   
40

Abundance In Earth's Crust
0.66 %   
7
0.00 %   
27

Abundance In Oceans
0.00 %   
15
0.00 %   
39

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