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Lawrencium
Lawrencium

Francium
Francium



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Lawrencium
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Francium

Facts About Lawrencium and Francium

1 Facts
1.1 Interesting Facts
  • It is synthetically produced metal.
  • Radiation hazard can be produce by it.
  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
1.2 Sources
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining
Formed by Decay Process, Mining
1.3 History
1.3.1 Who Discovered
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research
Marguerite Perey
1.3.2 Discovery
In 1961–1971
In 1939
1.4 Abundance
1.4.1 Abundance In Universe
NANA
Facts About Thallium
5E-09 0.11
1.1.1 Abundance In Sun
~-9999 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.2.1 Abundance In Meteorites
NANA
Facts About Gold
1.7E-07 22
1.4.2 Abundance In Earth's Crust
NANA
Facts About Radium
9.9E-12 8.1
1.4.3 Abundance In Oceans
NANA
Facts About Protactinium
2E-23 1.1
1.4.5 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4