Assertion: sulfur's compound | /r/MadeOf | chalcogen
Facets:
value: purely
type: DEGREE
Source sentences:
text: Out of the compounds consisting purely of chalcogens and halogens, there are a total of 13 chalcogen fluorides, nine chalcogen chlorides, eight chalcogen bromides, and six chalcogen iodides that are known.[dubious – discuss]