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Molybdenum
Molybdenum

Francium
Francium



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Molybdenum
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Francium

Facts About Molybdenum and Francium

Facts

Interesting Facts

Sources

Who Discovered

Discovery

Abundance In Universe

Abundance In Sun

Abundance In Meteorites

Abundance In Earth's Crust

Abundance In Oceans

Abundance In Humans

 
  • Molybdenum is highly reactive metal, hence not found free in nature .
  • Till 18th century Molybdenum element were often mistaken as a carbon or Lead.
Found in Minerals, Mining, Ores of Minerals
Carl Wilhelm Scheele
In 1778
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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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