Facts About Actinium and Francium
Interesting Facts
Not Available
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
Sources
Obtained by Treating Radium with Neutrons, Ores of metals
Formed by Decay Process, Mining
Who Discovered
Friedrich Oskar Giesel
Marguerite Perey
Discovery
In 1902
In 1939