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Francium
Francium

Seaborgium
Seaborgium



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Francium
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Seaborgium

Facts About Francium and Seaborgium

1 Facts
1.1 Interesting Facts
  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
  • Seaborgium most stable isotope is Sg and it has 2.1 min of half- life.
  • And other isotopes of Seaborgium have half-lives as short as 3 ms.
1.2 Sources
Formed by Decay Process, Mining
Synthetically Produced
1.3 History
1.3.1 Who Discovered
Marguerite Perey
Lawrence Berkeley National Laboratory
1.3.2 Discovery
In 1939
In 1974
1.4 Abundance
1.4.1 Abundance In Universe
NANA
Facts About Thallium
5E-09 0.11
1.7.1 Abundance In Sun
~-9999 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.10.1 Abundance In Meteorites
NANA
Facts About Gold
1.7E-07 22
1.12.1 Abundance In Earth's Crust
NANA
Facts About Radium
9.9E-12 8.1
2.4.1 Abundance In Oceans
NANA
Facts About Protactinium
2E-23 1.1
2.4.3 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4