Facts About Thulium and Terbium
Interesting Facts
- Thulium metal can resist corrosion due to dry air .
- Only Tm-169 isotope of Thulium metal occur naturally.
  
- At times Terbium metal acts same as Calcium.
- Terbium metal closely similar to Lanthanum metal.
  
Sources
Found in Minerals, Mining, Ores of Minerals
  
Found in Minerals, Found with Other Rare Earth Metals, Mining, Ores of Minerals
  
History
  
  
Who Discovered
Per Teodor Cleve
  
Carl Gustaf Mosander
  
Discovery
In 1879
  
In 1842
  
Abundance
  
  
Abundance In Sun
~0.00000002 %
  
28
~0.00000001 %
  
29
Abundance In Earth's Crust