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Hafnium
Hafnium

Molybdenum
Molybdenum



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Hafnium
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Facts About Hafnium and Molybdenum

1 Facts
1.1 Interesting Facts
  • Hafnium metal is highly reactive, hence not found free in nature.
  • Hafnium metal as predicated after Mendeleev finished his periodic table.
  • Molybdenum is highly reactive metal, hence not found free in nature .
  • Till 18th century Molybdenum element were often mistaken as a carbon or Lead.
1.2 Sources
By-product Zirconium Refining
Found in Minerals, Mining, Ores of Minerals
1.3 History
1.3.1 Who Discovered
Dirk Coster and George de Hevesy
Carl Wilhelm Scheele
1.3.2 Discovery
In 1922
In 1778
1.4 Abundance
1.4.1 Abundance In Universe
Facts About Iron
7 * 10-8 %
Rank: 25 (Overall)
5 * 10-7 %
Rank: 19 (Overall)
Facts About Thallium
1.4.2 Abundance In Sun
Facts About Iron
~0.0000001 %
Rank: 26 (Overall)
~0.0000009 %
Rank: 19 (Overall)
Facts About Beryllium
1.4.3 Abundance In Meteorites
Facts About Iron
0.00 %
Rank: 37 (Overall)
0.00 %
Rank: 24 (Overall)
Facts About Gold
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1.4.4 Abundance In Earth's Crust
Facts About Alu..
0.00 %
Rank: 31 (Overall)
0.00 %
Rank: 39 (Overall)
Facts About Radium
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1.4.5 Abundance In Oceans
Facts About Sod..
0.00 %
Rank: 27 (Overall)
0.00 %
Rank: 9 (Overall)
Facts About Protactinium
1.4.6 Abundance In Humans
Facts About Cal..
Not Available
Rank: N/A (Overall)
0.00 %
Rank: 14 (Overall)
Facts About Radium
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