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Facts About Francium and Cerium


Facts About Cerium and Francium


Facts

Interesting Facts
  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
  
  • Cerium is a rare earth metal but still it is not rare at all.
  • It’s non-toxic compound Cerium sulfide has a rich red color and it is used as a pigment.
  • Cerium metal is also used in Flat screen TVs, light bulb, floodlights, etc.
  

Sources
Formed by Decay Process, Mining   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Marguerite Perey   
Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger   

Discovery
In 1939   
In 1803   

Abundance
  
  

Abundance In Universe
Not Available   
1 * 10-6 %   
16

Abundance In Sun
~-9999 %   
~0.0000004 %   
23

Abundance In Meteorites
Not Available   
0.00 %   
27

Abundance In Earth's Crust
Not Available   
0.01 %   
18

Abundance In Oceans
Not Available   
0.00 %   
33

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