1 Facts
1.1 Interesting Facts
- Thorium metal is used as an alternate option over Uranium for nuclear fuel.
- Thorium metals appearance (silvery white, soft) is somewhat similar to Lead metal.
- 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
Earth's crust, Found in Minerals, Mining, Ores of Minerals
1.3 History
1.3.1 Who Discovered
Jöns Jakob Berzelius
Humphry Davy
1.3.2 Discovery
1.4 Abundance
1.4.1 Abundance In Universe
3 * 10-4 %7 * 10-3 %
5E-09
0.11
1.4.2 Abundance In Sun
~0.0004 %~0.007 %
1E-08
0.1
1.4.3 Abundance In Meteorites
1.4.4 Abundance In Earth's Crust
1.4.5 Abundance In Oceans
1.4.6 Abundance In Humans