Neptunium is a chemical element; it has symbol Np and atomic number 93. A radioactive actinide metal, neptunium is the first transuranic element. It is...

Neptunium (93Np) is usually considered an artificial element, although trace quantities are found in nature, so a standard atomic weight cannot be given...

Neptunium compounds are compounds containing the element neptunium (Np). Neptunium has five ionic oxidation states ranging from +3 to +7 when forming chemical...

but the valence +4 is preferred in solid neptunium compounds. Neptunium metal is very reactive. Ions of neptunium are prone to hydrolysis and formation of...

neutrinos, is 42.6 MeV. The 4n + 1 chain of neptunium-237 is commonly called the "neptunium series" or "neptunium cascade". In this series, only two of the...

Neptunium nitride is a binary inorganic compound of neptunium and nitrogen with the chemical formula NpN. Neptunium nitride can be prepared by the reaction...

Neptunium fluoride may refer to: Neptunium(III) fluoride, NpF3 Neptunium(IV) fluoride, NpF4 Neptunium(V) fluoride, NpF5 Neptunium(VI) fluoride, NpF6 This...

bombarding uranium-238 with deuterons, creating neptunium-238. 238 92U + 2 1H → 238 93Np + 2 n The neptunium isotope then undergoes β− decay to plutonium-238...

Neptunium(IV) oxide, or neptunium dioxide, is a radioactive, olive green cubic crystalline solid with the formula NpO2. It emits both α- and γ-particles...

Neptunium tetrabromide is a binary inorganic compound of neptunium metal and bromine with the chemical formula NpBr4. The compound can be prepared from...