Facts About Niobium and Thorium
Interesting Facts
- Niobium metal was used to get called Columbium in past.
- Niobium metal found freely in nature (abundance).
  
- Thorium metal is used as an alternate option over Uranium for nuclear fuel.
- Thorium metals appearance (silvery white, soft) is somewhat similar to Lead metal.
  
Sources
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals
  
Found in Minerals, Mining
  
History
  
  
Who Discovered
Charles Hatchett
  
Jöns Jakob Berzelius
  
Discovery
In 1801
  
In 1829
  
Abundance
  
  
Abundance In Sun
~0.0000004 %
  
23
Abundance In Earth's Crust