1 Facts
1.1 Interesting Facts
Not Available
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
1.2 Sources
Obtained by Treating Radium with Neutrons, Ores of metals
Formed by Decay Process, Mining
1.3 History
1.3.1 Who Discovered
Friedrich Oskar Giesel
Marguerite Perey
1.3.2 Discovery
1.4 Abundance
1.4.1 Abundance In Universe
1.4.2 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
1.4.3 Abundance In Meteorites
1.2.1 Abundance In Earth's Crust
1.3.1 Abundance In Oceans
1.3.2 Abundance In Humans