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Potassium
Potassium

Calcium
Calcium



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Facts About Potassium and Calcium

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1 Facts
1.1 Interesting Facts
  • In the list of most abundant element Potassium is ranked 7th.
  • Potassium can easily be sliced (chopped) down using knife.
  • 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
Humphry Davy
Humphry Davy
1.3.2 Discovery
In 1807
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
0.07 %1.10 %
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
1.50 %5.00 %
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
0.04 %0.00 %
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
0.20 %1.40 %
Facts About Radium
1E-13 1.4