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Rhodium
Rhodium

Potassium
Potassium



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Facts About Rhodium and Potassium

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1 Facts
1.1 Interesting Facts
  • Rhodium is the rarest element out of all non-radioactive metals on the earth .
  • Rhodium is one of the most durable and hard metal, which also have high reflectance.
  • In the list of most abundant element Potassium is ranked 7th.
  • Potassium can easily be sliced (chopped) down using knife.
1.2 Sources
Earth's crust, Found As a By-product, Found in Minerals, Mining
Found in Minerals, Mining
1.3 History
1.3.1 Who Discovered
William Hyde Wollaston
Humphry Davy
1.3.2 Discovery
In 1804
In 1807
1.4 Abundance
1.4.1 Abundance In Universe
6 * 10-8 %3 * 10-4 %
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~0.0000002 %~0.0004 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
0.00 %0.07 %
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
0.00 %1.50 %
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
NA0.04 %
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NA0.20 %
Facts About Radium
1E-13 1.4