1 Facts
1.1 Interesting Facts
- Naturally occurring minor elements include Cadmium.
- Cadmium is released into atmosphere to control volcanic eruption and forest fires.
- It is used for electroplating of Steel for corrosion resistance.
- It can absorb neutrons and used in nuclear reactor to control atomic fission.
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
1.2 Sources
Found As a By-product, Found in Minerals, Mining
By-product Zirconium Refining
1.3 History
1.3.1 Who Discovered
Karl Samuel Leberecht Hermann and Friedrich Stromeyer
Dirk Coster and George de Hevesy
1.3.2 Discovery
1.4 Abundance
1.4.1 Abundance In Universe
2 * 10-7 %7 * 10-8 %
5E-09
0.11
1.4.2 Abundance In Sun
~0.0000006 %~0.0000001 %
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