Assertion: technetium | /r/HasAspect | eight oxidation states
Facets:
value: from -1
type: LOCATION
Source sentences:
text: Technetium (99mTc) has eight oxidation states 6, from -1 to +7; specifically, the oxidation state of technetium in the pertechnetate anion (99mTcO 4 -) is +7.