Facts About Francium and Samarium
Facts
Interesting Facts
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
- Samarium metals helps stimulating body metabolism.
- Samarium metals was 1st observed by Jean Charles Galissard de Marignac in Dydimia in 1853.
Sources
Formed by Decay Process, Mining
Found in Minerals, Mining, Ores of Minerals
History
Who Discovered
Marguerite Perey
Lecoq de Boisbaudran
Discovery
In 1939
In 1879
Abundance
Abundance In Universe
Not Available
5 * 10-7 %
19
Abundance In Sun
~-9999 %
~0.0000001 %
26
Abundance In Meteorites
Not Available
0.00 %
37
Abundance In Earth's Crust
Not Available
0.00 %
29
Abundance In Oceans
Not Available
0.00 %
40
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