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