Facts About Hafnium and Manganese
Interesting Facts
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
  
- Manganese is an essential trace element in all forms of life.
- Manganese metal oxidizes very easily, but it does not fuse that easily.
  
Sources
By-product Zirconium Refining
  
Found in Minerals, Mining, Ores of Minerals
  
History
  
  
Who Discovered
Dirk Coster and George de Hevesy
  
Johann Gottlieb Gahn
  
Discovery
In 1922
  
In 1774
  
Abundance
  
  
Abundance In Sun
~0.0000001 %
  
26
Abundance In Earth's Crust
Abundance In Humans
Not Available