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Chromium
Chromium

Americium
Americium



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Facts About Chromium and Americium

1 Facts
1.1 Interesting Facts
  • Chromium is highly reactive, hence it is not found free in nature.
  • Ores of Chromites mineral are the major source of Chromium metal.
  • Almost 90% leather tanning is done with the help of chromium.
  • Americium metal is produced by bombarding Plutonium with Neutrons.
  • Americium metal was discovered as a by-product while testing an atomic bomb (Manhattan Project).
1.2 Sources
Found in Minerals, Mining, Ores of metals, Ores of Minerals
Obtained By Bombarding Plutonium with Neutrons
1.3 History
1.3.1 Who Discovered
Louis Nicolas Vauquelin
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
1.3.2 Discovery
In Between 1797 - 1798
In 1944
1.4 Abundance
1.4.1 Abundance In Universe
1.5 * 10-3 %NA
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~0.002 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
0.30 %NA
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
0.01 %NA
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
0.00 %NA
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
0.00 %NA
Facts About Radium
1E-13 1.4