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Osmium
Osmium
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Hafnium
Hafnium
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Facts About Osmium and Hafnium
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1 Facts
1.1 Interesting Facts
  • Osmium metal does not oxidize in air unless it is heated.
  • But if it heated den it forms Osmium Tetroxide, which is highly toxic.
  • Hafnium metal is highly reactive, hence not found free in nature.
  • Hafnium metal as predicated after Mendeleev finished his periodic table.
1.2 Sources
Found As a By-product, Found in Minerals, Mining
By-product Zirconium Refining
1.3 History
1.3.1 Who Discovered
Smithson Tennant
Dirk Coster and George de Hevesy
1.3.2 Discovery
In 1803
In 1922
1.4 Abundance
1.4.1 Abundance In Universe
Facts About Iron
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3 * 10-7 %
Rank: 21 (Overall)▶
7 * 10-8 %
Rank: 25 (Overall)▶
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Facts About Thallium
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1.4.2 Abundance In Sun
Facts About Iron
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~0.0000002 %
Rank: 25 (Overall)▶
~0.0000001 %
Rank: 26 (Overall)▶
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Facts About Beryllium
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1.4.3 Abundance In Meteorites
Facts About Iron
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0.00 %
Rank: 28 (Overall)▶
0.00 %
Rank: 37 (Overall)▶
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Facts About Gold
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1.4.4 Abundance In Earth's Crust
Facts About Alu..
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0.00 %
Rank: 53 (Overall)▶
0.00 %
Rank: 31 (Overall)▶
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Facts About Radium
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1.4.5 Abundance In Oceans
Facts About Sod..
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Not Available
Rank: N/A (Overall)▶
0.00 %
Rank: 27 (Overall)▶
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Facts About Protactinium
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1.4.6 Abundance In Humans
Facts About Cal..
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Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Facts About Radium
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