Facts About Calcium and Hafnium
Interesting Facts
- 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.
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
By-product Zirconium Refining
Who Discovered
Humphry Davy
Dirk Coster and George de Hevesy
Discovery
In 1808
In 1922
Abundance In Earth's Crust
Abundance In Humans
Not Available