Tags: Chemical Compound, Chemical Substance.
Curium(III) oxide is a compound composed of curium and oxygen with chemical formula Cm2O3. Curium forms two oxides curium(III) oxide (Cm2O3) and curium(IV) oxide (CmO2). However curium(III) oxide is more common. Both curium oxides are solids insoluble in water but soluble in mineral acids.