×

Calcium
Calcium

Osmium
Osmium



ADD
Compare
X
Calcium
X
Osmium

Facts About Calcium and Osmium

Add ⊕
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
In 1808
In 1803
1.4 Abundance
1.4.1 Abundance In Universe
7 * 10-3 %3 * 10-7 %
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~0.007 %~0.0000002 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
1.10 %0.00 %
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
5.00 %0.00 %
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
0.00 %NA
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
1.40 %NA
Facts About Radium
1E-13 1.4