Facts About Promethium and Bohrium
Interesting Facts
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
- Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
Sources
Found in Minerals, Mining
Found in Minerals, Mining, Synthetically Produced
Who Discovered
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Gesellschaft für Schwerionenforschung
Discovery
In 1942
In 1981
Abundance In Meteorites
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Abundance In Earth's Crust