Neptunium(IV) oxide
Chemical compound
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. Wikipedia
Formula: NpO2
Density: 11.1 g/cm³
Melting point: 4,617°F (2,547°C)
Molar mass: 269 g/mol
Crystal structure: Flourite (cubic), cF12
Formula units (Z): 4
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