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. To study these elements ...

Researchers at the Department of Energy's Oak Ridge National Laboratory are breathing new life into the scientific understanding of neptunium, a unique, radioactive, metallic element—and a key ...

A new technique developed by researchers in Germany can measure ionization states of this element more precisely than before, with implications for its detection and remediation in radioactive waste.

This week's element is neptunium, which has the atomic symbol Np and atomic number 93. Neptunium was named for the planet Neptune, the next planet away from the sun after Uranus (which was uranium's ...

Not much is known about the properties of neptunium, a highly radioactive man-made material that is a byproduct of nuclear reactors, except that it emits alpha, beta and gamma radioactivity. The ...

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It’s difficult to make molecules using elements that lie beyond uranium on the periodic table, which has hampered progress in studying how actinides form bonds. Now chemists have expanded the library ...

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, ...

Scientists have managed to successfully make a transuranium complex where the central metal, here neptunium, forms a multiple bond to just one other element. Enabling study of such a bonding ...

Jim Ibers talks about neptunium, an element that has remained largely unnoticed despite the flurry of activity devoted to its neighbours in the periodic table, uranium and plutonium. The actinides, ...