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.
- Osmium metal does not oxidize in air unless it is heated.
- But if it heated den it forms Osmium Tetroxide, which is highly toxic.
1.2 Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Found As a By-product, Found in Minerals, Mining
1.3 History
1.3.1 Who Discovered
Humphry Davy
Smithson Tennant
1.3.2 Discovery
1.4 Abundance
1.4.1 Abundance In Universe
7 * 10-3 %3 * 10-7 %
5E-09
0.11
1.4.3 Abundance In Sun
~0.007 %~0.0000002 %
1E-08
0.1
1.4.6 Abundance In Meteorites
1.4.8 Abundance In Earth's Crust
1.4.11 Abundance In Oceans
1.5.1 Abundance In Humans