Facts About Francium and Neptunium
Interesting Facts
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
Not Available
Sources
Formed by Decay Process, Mining
Made by Bombarding Uranium with Neutrons, Ores of metals
Who Discovered
Marguerite Perey
Edwin McMillan and Philip H. Abelson
Discovery
In 1939
In 1940