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Cerium
Cerium
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Francium
Francium
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Facts About Cerium and Francium

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Abundance In Universe

Abundance In Sun

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Abundance In Earth's Crust

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Abundance In Humans

 
  • 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.
Found in Minerals, Mining, Ores of Minerals
Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger
In 1803
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  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
Formed by Decay Process, Mining
Marguerite Perey
In 1939
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