Interesting Facts
Neptunium was the first transuranium element to be discovered.
Sources
Made by Bombarding Uranium with Neutrons, Ores of metals
History
Who Discovered
Edwin McMillan and Philip H. Abelson
Discovery
In 1940
Abundance
Abundance In Universe
0.00 %
Rank: 40 (Overall)
0
0.11
👆🏻
Abundance In Sun
0.00 %
Rank: 26 (Overall)
0
0.1
👆🏻
Abundance In Meteorites
0.00 %
Rank: 54 (Overall)
0
22
👆🏻
Abundance In Earth's Crust
0.00 %
Rank: 60 (Overall)
1E-37
8.1
👆🏻
Abundance In Oceans
-
0
1.1
👆🏻
Abundance In Humans
0.00 %
Rank: 24 (Overall)
0
1.4
👆🏻