Assertion: cerium | /r/CapableOf | exhibit a +4 oxidation state
Facets:
value: in solution
type: LOCATION
Source sentences:
text: Along with praseodymium and terbium, cerium is different from the other rare earths in that it forms compounds in which its oxidation state is +4; it is the only rare earth that exhibits a +4 oxidation state in solution.