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Facts About Calcium and Hafnium
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1 Facts
1.1 Interesting Facts
  • Calcium ranks 5th rank in the list of earth’s abundance Percentage.
  • It is found in the compound state.
  • Gypsum or calcium sulfate is used as plaster and plaster of paris.
  • Hafnium metal is highly reactive, hence not found free in nature.
  • Hafnium metal as predicated after Mendeleev finished his periodic table.
1.2 Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
By-product Zirconium Refining
1.3 History
1.3.1 Who Discovered
Humphry Davy
Dirk Coster and George de Hevesy
1.3.3 Discovery
In 1808
In 1922
1.4 Abundance
1.4.1 Abundance In Universe
Facts About Iron
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7 * 10-3 %
Rank: 3 (Overall)▶
7 * 10-8 %
Rank: 25 (Overall)▶
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Facts About Thallium
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1.4.3 Abundance In Sun
Facts About Iron
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~0.007 %
Rank: 4 (Overall)▶
~0.0000001 %
Rank: 26 (Overall)▶
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Facts About Beryllium
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1.4.5 Abundance In Meteorites
Facts About Iron
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1.10 %
Rank: 4 (Overall)▶
0.00 %
Rank: 37 (Overall)▶
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Facts About Gold
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1.5.3 Abundance In Earth's Crust
Facts About Alu..
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5.00 %
Rank: 3 (Overall)▶
0.00 %
Rank: 31 (Overall)▶
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Facts About Radium
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1.5.5 Abundance In Oceans
Facts About Sod..
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0.00 %
Rank: 5 (Overall)▶
0.00 %
Rank: 27 (Overall)▶
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Facts About Protactinium
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1.5.7 Abundance In Humans
Facts About Cal..
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1.40 %
Rank: 1 (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Facts About Radium
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