Facts About Mendelevium and Francium
Interesting Facts
- Mendelevium metal is synthetically produced metal.
- Mendelevium metal has been produced in only trace amount.
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
Sources
Bombarding Einsteinium with Helium Ions
Formed by Decay Process, Mining
Who Discovered
Lawrence Berkeley National Laboratory
Marguerite Perey
Discovery
In 1955
In 1939