Facts About Promethium and Hafnium
Interesting Facts
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
Sources
Found in Minerals, Mining
By-product Zirconium Refining
Who Discovered
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Dirk Coster and George de Hevesy
Discovery
In 1942
In 1922
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