Uranium exhibits multiple oxidation states, with the most common being +3, +4, +5, and +6.

- +3: This is the most stable oxidation state of uranium, and it is found in compounds such as uranium trichloride (UCl3) and uranium trioxide (U2O3).

- +4: The +4 oxidation state is also common, and it is found in compounds such as uranium tetrachloride (UCl4) and uranium dioxide (UO2).

- +5: The +5 oxidation state is less common, but it is found in compounds such as uranyl nitrate (UO2(NO3)2) and uranyl acetate (UO2(CH3COO)2).

- +6: The +6 oxidation state is the highest oxidation state of uranium, and it is found in compounds such as uranyl sulfate (UO2SO4) and uranyl fluoride (UO2F2).