Now chemists have expanded the library of such molecules, creating a trio of transuranium complexes that contain double bonds between neptunium and carbon (J. Am. Chem. Soc. 2022, DOI: 10.1021 ...

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.

Nature Chemistry - Jim Ibers talks about neptunium, ... For example, the crystal structure of neptunium under ambient conditions differs from those of uranium and plutonium, ...

Superconductivity, a state where metals lose their electrical resistance, has been for a long time a dream of physicists. It could change the way we use ...

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 ...

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 ...

Neptunium, an actinide metal, sits next to uranium in the periodic table with an atomic number of 93; almost self-evidently, its name derives from the planet beyond Uranus in the solar system, ...

To measure neptunium-237’s critical mass, the Los Alamos team cast a softball-size, 6-kg sphere of the metal that could nestle within two hemispheres of uranium.

Exotic Materials Using Neptunium, Plutonium Provide Insight Into Superconductivity. ScienceDaily . Retrieved June 4, 2025 from www.sciencedaily.com / releases / 2008 / 07 / 080721121644.htm ...

1 receive neptunium-237 The precursor to plutonium- 238 is neptunium-237, a radioactive by-product of nuclear power plants. Oak Ridge gets its neptunium trucked in from Idaho National Laboratory ...

The main reason neptunium hasn’t been made into a bomb (other than the fact that now that we know it can be, access to it is regulated) is historical.Real work on a nuclear bomb began in the 1940s.