Facts About Francium and Lawrencium
Interesting Facts
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
- It is synthetically produced metal.
- Radiation hazard can be produce by it.
Sources
Formed by Decay Process, Mining
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining
Who Discovered
Marguerite Perey
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research
Discovery
In 1939
In 1961–1971