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Roentgenium
Roentgenium

Promethium
Promethium



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Roentgenium
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Promethium

Facts About Roentgenium and Promethium

1 Facts
1.1 Interesting Facts
Not Available
  • Promethium metal found in Pitchblende.
  • Promethium metal is highly radioactive metal.
1.2 Sources
Synthetically Produced
Found in Minerals, Mining
1.3 History
1.3.1 Who Discovered
Gesellschaft für Schwerionenforschung
Chien Shiung Wu, Emilio Segrè, Hans Bethe
1.3.2 Discovery
In 1994
In 1942
1.4 Abundance
1.4.1 Abundance In Universe
NANA
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~-9999 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
NANA
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
NANA
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
NANA
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4