Facts About Dubnium and Hafnium
Interesting Facts
- IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
- In the production of Dubnium, thermal gradient chromatography is used.
  
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
  
Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced
  
By-product Zirconium Refining
  
History
  
  
Who Discovered
Joint Institute for Nuclear Research
  
Dirk Coster and George de Hevesy
  
Discovery
In 1968
  
In 1922
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~-9999 %
  
~0.0000001 %
  
26
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Not Available
  
Abundance In Oceans
Not Available