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Promethium
Promethium

Mendelevium
Mendelevium



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Promethium
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Mendelevium

Facts About Promethium and Mendelevium

1 Facts
1.1 Interesting Facts
  • Promethium metal found in Pitchblende.
  • Promethium metal is highly radioactive metal.
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
1.2 Sources
Found in Minerals, Mining
Bombarding Einsteinium with Helium Ions
1.3 History
1.3.1 Who Discovered
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Lawrence Berkeley National Laboratory
1.3.2 Discovery
In 1942
In 1955
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