Assertion: arsenic's oxidation state | /r/CapableOf | occur as free lead anions
Facets:
value: as in ba 2 pb
type: LOCATION
value: with lead
type: OTHER
Source sentences:
text: Negative oxidation states can occur as Zintl phases, as either free lead anions, as in Ba 2 Pb, with lead formally being lead(−IV), or in oxygen-sensitive ring-shaped or polyhedral cluster ions such as the trigonal bipyramidal