Neptunium, element 93 on the periodic table of elements, was the first transuranium element to be produced synthetically and the first actinide series transuranium element to be discovered. Its ...

Oxidation is the process where atoms lose electrons during a chemical reaction. Among the radioactive elements, neptunium and plutonium are much harder to oxidize than uranium.

This neptunium complex comprises some of the first examples of dative single bonds and double bonds between a transuranium element and carbon.

Neptunium and plutonium are harder to oxidize than uranium, making them more difficult to study. To address this challenge, scientists have designed donor ligands—molecules that contribute ...

Probing neptunium's atomic structure with laser spectroscopy by Clare Sansom, SciencePOD The mass separator used in the experiments. Green: ion trajectory; blue and violet, laser beams.

From the neptunium-uranium assembly’s critical mass, the team then calculated neptunium’s individual critical mass. “When you go critical, that’s when things get exciting,” Clement says.

Exotic Materials Using Neptunium, Plutonium Provide Insight Into Superconductivity Date: July 22, 2008 Source: Rutgers University Summary: Physicists have gained new insight into the origins of ...

Edwin McMillan and Philip H. Abelson first produced neptunium at the University of California in 1940. The scientists bombarded uranium-238 atoms with neutrons to chemically produce neptunium-239 ...