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Francium
Francium

Rubidium
Rubidium



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Francium
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Facts About Francium and Rubidium

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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.
  • Rubidium metal is 16th most common element found in the earth crust.
  • Rubidium metal also found in minerals as well as seawater.
1.2 Sources
Formed by Decay Process, Mining
Obtained from Lithium Production.
1.3 History
1.3.1 Who Discovered
Marguerite Perey
Robert Bunsen and Gustav Kirchhoff
1.3.2 Discovery
In 1939
In 1861
1.4 Abundance
1.4.1 Abundance In Universe
NA1 * 10-6 %
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~-9999 %~0.000003 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
NA0.00 %
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
NA0.01 %
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
NA0.00 %
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NA0.00 %
Facts About Radium
1E-13 1.4