1 Facts
1.1 Interesting Facts
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
1.2 Sources
By-product Zirconium Refining
Found in Minerals, Mining
1.3 History
1.3.1 Who Discovered
Dirk Coster and George de Hevesy
Chien Shiung Wu, Emilio Segrè, Hans Bethe
1.3.2 Discovery
1.4 Abundance
1.4.1 Abundance In Universe
1.4.2 Abundance In Sun
~0.0000001 %~-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