1 Facts
1.1 Interesting Facts
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
- 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.
1.2 Sources
Found in Minerals, Mining
Found in Minerals, Mining, Ores of metals, Ores of Minerals
1.3 History
1.3.1 Who Discovered
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Louis Nicolas Vauquelin
1.3.2 Discovery
In 1942
In Between 1797 - 1798
1.4 Abundance
1.4.1 Abundance In Universe
NA1.5 * 10-3 %
5E-09
0.11
1.4.2 Abundance In Sun
~-9999 %~0.002 %
1E-08
0.1
1.4.3 Abundance In Meteorites
1.4.4 Abundance In Earth's Crust
1.4.5 Abundance In Oceans
1.4.6 Abundance In Humans