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Facts About Strontium and Promethium


Facts About Promethium and Strontium


Facts

Interesting Facts
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  
  • Promethium metal found in Pitchblende.
  • Promethium metal is highly radioactive metal.
  

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

History
  
  

Who Discovered
William Cruickshank   
Chien Shiung Wu, Emilio Segrè, Hans Bethe   

Discovery
In 1787   
In 1942   

Abundance
  
  

Abundance In Universe
4 * 10-6 %   
14
Not Available   

Abundance In Sun
~0.000005 %   
15
~-9999 %   

Abundance In Meteorites
0.00 %   
15
Not Available   

Abundance In Earth's Crust
0.04 %   
10
Not Available   

Abundance In Oceans
0.00 %   
4
Not Available   

Abundance In Humans
0.00 %   
7
Not Available   

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