Facts About Hafnium and Francium
Interesting Facts
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
Sources
By-product Zirconium Refining
Formed by Decay Process, Mining
Who Discovered
Dirk Coster and George de Hevesy
Marguerite Perey
Discovery
In 1922
In 1939
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