Facts About Neptunium and Protactinium
Interesting Facts
Not Available
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
Sources
Made by Bombarding Uranium with Neutrons, Ores of metals
Found in Uranium Ores, Mining, Ores of metals
Who Discovered
Edwin McMillan and Philip H. Abelson
William Crookes
Discovery
In 1940
In 1900
Abundance In Earth's Crust
Not Available
Abundance In Oceans
Not Available