1 Facts
1.1 Interesting Facts
- IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
- In the production of Dubnium, thermal gradient chromatography is used.
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
1.2 Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced
Found in Minerals, Mining
1.3 History
1.3.1 Who Discovered
Joint Institute for Nuclear Research
Chien Shiung Wu, Emilio Segrè, Hans Bethe
1.3.2 Discovery
1.4 Abundance
1.4.1 Abundance In Universe
1.4.2 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
1.4.3 Abundance In Meteorites
1.4.4 Abundance In Earth's Crust
1.4.5 Abundance In Oceans
1.4.6 Abundance In Humans