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.
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
1.2 Sources
Found in Minerals, Mining, Ores of metals, Ores of Minerals
Found in Uranium Ores, Mining, Ores of metals
1.3 History
1.3.1 Who Discovered
Louis Nicolas Vauquelin
William Crookes
1.3.2 Discovery
In Between 1797 - 1798
In 1900
1.4 Abundance
1.4.1 Abundance In Universe
1.5 * 10-3 %NA
5E-09
0.11
1.4.2 Abundance In Sun
~0.002 %~-9999 %
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