Assertion: actinide fermium | /r/HasAspect | tendency
Facets:
value: towards forming lower oxidation states
type: TRANSITIVE-OBJECT
Source sentences:
text: Lawrencium's return to +3 as the only stable oxidation state and being predicted to form a trivalent metal is distinct from the behaviour of the other late actinides fermium, mendelevium, and nobelium, which have a tendency towards forming lower oxidation states and form (or are predicted to form) divalent metals; it also makes an exception to the actinide contraction generally being larger than the analogous lanthanide contraction at the end of both series.