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Rubidium
Rubidium

Francium
Francium



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Facts About Rubidium and Francium

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1 Facts
1.1 Interesting Facts
  • Rubidium metal is 16th most common element found in the earth crust.
  • Rubidium metal also found in minerals as well as seawater.
  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
1.2 Sources
Obtained from Lithium Production.
Formed by Decay Process, Mining
1.3 History
1.3.1 Who Discovered
Robert Bunsen and Gustav Kirchhoff
Marguerite Perey
1.3.2 Discovery
In 1861
In 1939
1.4 Abundance
1.4.1 Abundance In Universe
1 * 10-6 %NA
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~0.000003 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
0.00 %NA
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
0.01 %NA
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
0.00 %NA
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
0.00 %NA
Facts About Radium
1E-13 1.4