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Facts About Holmium and Polonium


Facts About Polonium and Holmium


Facts

Interesting Facts
  • Holmium metal is very soft and malleable.
  • Holmium metal is well known for its corrosion resistivity.
  
  • Polonium was the first radioactive element to be discovered.
  • Polonium element and its compounds are highly radioactive.
  • Its alloy with Beryllium provides source of neutrons.
  

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

History
  
  

Who Discovered
Marc Delafontaine   
Pierre Curie and Marie Curie   

Discovery
In 1878   
In 1898   

Abundance
  
  

Abundance In Universe
5 * 10-8 %   
27
Not Available   

Abundance In Meteorites
0.00 %   
99+
Not Available   

Abundance In Earth's Crust
0.00 %   
38
Not Available   

Abundance In Oceans
0.00 %   
99+
0.00 %   
99+

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