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Calcium
Calcium

Thorium
Thorium



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Facts About Calcium and Thorium

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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.
  • 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.
1.2 Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining
1.3 History
1.3.1 Who Discovered
Humphry Davy
Jöns Jakob Berzelius
1.3.2 Discovery
In 1808
In 1829
1.4 Abundance
1.4.1 Abundance In Universe
0.01 %0.00 %
Thallium
5E-09 0.11
1.4.2 Abundance In Sun
0.01 %0.00 %
Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
1.10 %0.05 %
Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
5.00 %0.66 %
Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
0.00 %0.00 %
Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
1.40 %NA
Radium
1E-13 1.4