Facts About Hafnium and Calcium
Interesting Facts
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
- Calcium ranks 5th rank in the list of earth’s abundance Percentage.
- It is found in the compound state.
- Gypsum or calcium sulfate is used as plaster and plaster of paris.
Sources
By-product Zirconium Refining
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Who Discovered
Dirk Coster and George de Hevesy
Humphry Davy
Discovery
In 1922
In 1808
Abundance In Earth's Crust
Abundance In Humans
Not Available