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Facts About Francium and Lanthanum


Facts About Lanthanum 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.
  
  • Lanthanum metal is highly malleable, ductile and sectile.
  • If exposed to air Lanthanum metal oxidizes rapidly.
  

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

History
  
  

Who Discovered
Marguerite Perey   
Carl Gustaf Mosander   

Discovery
In 1939   
In 1838   

Abundance
  
  

Abundance In Universe
Not Available   
2 * 10-7 %   
22

Abundance In Sun
~-9999 %   
~0.0000002 %   
25

Abundance In Meteorites
Not Available   
0.00 %   
32

Abundance In Earth's Crust
Not Available   
0.00 %   
19

Abundance In Oceans
Not Available   
0.00 %   
29

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