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.
- Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
1.2 Sources
Formed by Decay Process, Mining
Found in Minerals, Mining, Synthetically Produced
1.3 History
1.3.1 Who Discovered
Marguerite Perey
Gesellschaft für Schwerionenforschung
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
1.4.4 Abundance In Earth's Crust
1.4.5 Abundance In Oceans
1.4.6 Abundance In Humans