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