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Promethium
Promethium
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Hafnium
Hafnium
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Promethium
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Facts About Promethium and Hafnium
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1 Facts
1.1 Interesting Facts
  • Promethium metal found in Pitchblende.
  • Promethium metal is highly radioactive metal.
  • 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 in Minerals, Mining
By-product Zirconium Refining
1.3 History
1.3.1 Who Discovered
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Dirk Coster and George de Hevesy
1.3.2 Discovery
In 1942
In 1922
1.4 Abundance
1.4.1 Abundance In Universe
Facts About Iron
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Not Available
Rank: N/A (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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~-9999 %
Rank: N/A (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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Not Available
Rank: N/A (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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Not Available
Rank: N/A (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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