Facts About Promethium and Nihonium
Interesting Facts
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
Nihonium is a synthetic chemical element and is highly radioactive.
Sources
Found in Minerals, Mining
Synthetically Produced
Who Discovered
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
Discovery
In 1942
In 2003
Abundance In Meteorites
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Abundance In Earth's Crust
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