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Thorium
Thorium

Calcium
Calcium



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Facts About Thorium and Calcium

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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
In 1829
In 1808
1.4 Abundance
1.4.1 Abundance In Universe
3 * 10-4 %7 * 10-3 %
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~0.0004 %~0.007 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
0.05 %1.10 %
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
0.66 %5.00 %
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
0.00 %0.00 %
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NA1.40 %
Facts About Radium
1E-13 1.4