Facts About Niobium and Praseodymium
Interesting Facts
- Niobium metal was used to get called Columbium in past.
- Niobium metal found freely in nature (abundance).
  
- Praseodymium metal is synthetically produced metal.
- Praseodymium is used as possible fuel for radioactive generators.
  
Sources
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals
  
Found in Minerals, Mining, Ores of Minerals
  
History
  
  
Who Discovered
Charles Hatchett
  
Not Available
  
Discovery
In 1801
  
In 1885
  
Abundance
  
  
Abundance In Sun
~0.0000004 %
  
23
~0.0000001 %
  
26
Abundance In Earth's Crust