Facts About Hafnium and Promethium
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.
Sources
By-product Zirconium Refining
Found in Minerals, Mining
Who Discovered
Dirk Coster and George de Hevesy
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Discovery
In 1922
In 1942
Abundance In Universe
Not Available
Abundance In Sun
~-9999 %
Abundance In Meteorites
Not Available
Abundance In Earth's Crust
Not Available
Abundance In Oceans
Not Available