Interesting Facts
Neptunium was the first transuranium element to be discovered.
Nihonium is a synthetic chemical element and is highly radioactive.
Sources
Made by Bombarding Uranium with Neutrons, Ores of metals
Synthetically Produced
History
Who Discovered
Edwin McMillan and Philip H. Abelson
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
Discovery
In 1940
In 2003
Abundance
Abundance In Universe
0.00 %0.00 %
0
0.11
👆🏻
Abundance In Sun
0.00 %-
0
0.1
👆🏻
Abundance In Meteorites
0.00 %-
0
22
👆🏻
Abundance In Earth's Crust
0.00 %-
1E-37
8.1
👆🏻
Abundance In Oceans
--
0
1.1
👆🏻
Abundance In Humans
0.00 %-
0
1.4
👆🏻