C3H4A1L1C3O1G2E1N1I1D2E1S1
22 points
CHALCOGENIDES is validvalid
CHALCOGENIDE,
CHALCOGENIDE, a binary compound of a chalcogen with a more electropositive element or radical
CHALCOGENIDE,
CHALCOGENIDE, a binary compound of a chalcogen with a more electropositive element or radical