Valence States

Some articles on valence states, state, valence:

Actinide - Properties - Chemical Properties
... Most actinides exhibit a larger variety of valence states, and the most stable are +6 for uranium, +5 for protactinium and neptunium, +4 for thorium and plutonium and +3 for actinium and other actinides ... Protactinium exhibits two valence states the +5 is stable, and the +4 state easily oxidizes to protactinium(V) ... Uranium has a valence from 3 to 6, the last being most stable ...

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