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Francium
Francium

Europium
Europium



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Francium
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Europium

Facts About Francium and Europium

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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.
Not Available
1.2 Sources
Formed by Decay Process, Mining
Found in Minerals, Mining, Ores of Minerals
1.3 History
1.3.1 Who Discovered
Marguerite Perey
Eugène-Anatole Demarçay
1.3.3 Discovery
In 1939
In 1896
1.5 Abundance
1.5.1 Abundance In Universe
NA5 * 10-8 %
Facts About Thallium
5E-09 0.11
1.6.1 Abundance In Sun
~-9999 %~0.00000005 %
Facts About Beryllium
1E-08 0.1
1.10.1 Abundance In Meteorites
NA0.00 %
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
NA0.00 %
Facts About Radium
9.9E-12 8.1
1.2.4 Abundance In Oceans
NA0.00 %
Facts About Protactinium
2E-23 1.1
3.5.2 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4