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 ...

Three trial uranium-plutonium MOX fuel assemblies containing americium-241 and neptunium-237 were loaded into the Beloyarsk ...

Physicists have gained new insight into the origins of superconductivity -- a property of metals where electrical resistance vanishes -- by studying exotic chemical compounds that contain neptunium ...

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 ...

Uranium and plutonium have gotten famous, or infamous, because they are used in atom bombs. We could have been saying that about another material—one that few actually know. Learn about the material ...

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 ...

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 ...

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NEW BRUNSWICK, N.J. – Physicists at Rutgers and Columbia universities have gained new insight into the origins of superconductivity – a property of metals where electrical resistance vanishes – by ...