Interesting Facts
Sources
Who Discovered
Discovery
Abundance In Universe
Abundance In Sun
Abundance In Meteorites
Abundance In Earth's Crust
Abundance In Oceans
Abundance In Humans
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
Formed by Decay Process, Mining
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
Found in Uranium Ores, Mining, Ores of metals