Facts About Hafnium and Niobium
Interesting Facts
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
- Niobium metal was used to get called Columbium in past.
- Niobium metal found freely in nature (abundance).
Sources
By-product Zirconium Refining
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals
Who Discovered
Dirk Coster and George de Hevesy
Charles Hatchett
Discovery
In 1922
In 1801
Abundance In Earth's Crust