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Einsteinium
Einsteinium

Francium
Francium



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Facts About Einsteinium and Francium

Facts

Interesting Facts

  • Einsteinium is the transuranic element found in US.
  • Only 0.01 mg of Einsteinium was synthesized in 1961.
  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.

Sources

Made by Bombarding Uranium with Neutrons
Formed by Decay Process, Mining

History

Who Discovered

Lawrence Berkeley National Laboratory
Marguerite Perey

Discovery

In 1952
In 1939

Abundance

Abundance In Universe

0.00 %0.00 %
0 0.11
👆🏻

Abundance In Sun

0.00 %0.00 %
0 0.1
👆🏻

Abundance In Meteorites

0.00 %0.00 %
0 22
👆🏻

Abundance In Earth's Crust

0.00 %0.00 %
1E-37 8.1
👆🏻

Abundance In Oceans

--
0 1.1
👆🏻

Abundance In Humans

0.00 %0.00 %
0 1.4
👆🏻