Facts About Francium and Seaborgium
Interesting Facts
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
- Seaborgium most stable isotope is Sg and it has 2.1 min of half- life.
- And other isotopes of Seaborgium have half-lives as short as 3 ms.
Sources
Formed by Decay Process, Mining
Synthetically Produced
Who Discovered
Marguerite Perey
Lawrence Berkeley National Laboratory
Discovery
In 1939
In 1974