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Manganese
Manganese

Calcium
Calcium



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Facts About Manganese and Calcium

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1 Facts
1.1 Interesting Facts
  • Manganese is an essential trace element in all forms of life.
  • Manganese metal oxidizes very easily, but it does not fuse that easily.
  • 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.
1.2 Sources
Found in Minerals, Mining, Ores of Minerals
Earth's crust, Found in Minerals, Mining, Ores of Minerals
1.3 History
1.3.1 Who Discovered
Johann Gottlieb Gahn
Humphry Davy
1.3.2 Discovery
In 1774
In 1808
1.4 Abundance
1.4.1 Abundance In Universe
8 * 10-4 %7 * 10-3 %
Facts About Thallium
5E-09 0.11
2.4.4 Abundance In Sun
~0.001 %~0.007 %
Facts About Beryllium
1E-08 0.1
2.4.9 Abundance In Meteorites
0.27 %1.10 %
Facts About Gold
1.7E-07 22
2.5.8 Abundance In Earth's Crust
0.11 %5.00 %
Facts About Radium
9.9E-12 8.1
2.7.1 Abundance In Oceans
0.00 %0.00 %
Facts About Protactinium
2E-23 1.1
2.10.1 Abundance In Humans
0.00 %1.40 %
Facts About Radium
1E-13 1.4