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Francium
Francium

Californium
Californium



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Francium
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Californium

Facts About Francium and Californium

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.
  • Californium metal is very harmful and highly radioactive.
  • Californium metal is the heaviest metal.
1.2 Sources
Formed by Decay Process, Mining
Made by Bombarding Curium with Helium Ions
1.3 History
1.3.1 Who Discovered
Marguerite Perey
Lawrence Berkeley National Laboratory
1.3.2 Discovery
In 1939
In 1950
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