Interesting Facts
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
Roentgenium is a highly unstable synthetic element.
Sources
Found in Uranium Ores, Mining, Ores of metals
Synthetically Produced
History
Who Discovered
William Crookes
Gesellschaft für Schwerionenforschung
Discovery
In 1900
In 1994
Abundance
Abundance In Universe
0.00 %0.00 %
0
0.11
👆🏻
Abundance In Sun
0.00 %-
0
0.1
👆🏻
Abundance In Meteorites
--
0
22
👆🏻
Abundance In Earth's Crust
0.00 %-
1E-37
8.1
👆🏻
Abundance In Oceans
0.00 %-
0
1.1
👆🏻
Abundance In Humans
0.00 %-
0
1.4
👆🏻