Matches in DBpedia 2016-04 for { ?s ?p "Chalcogenide glass (hard \"ch\" as in \"chemistry\") is a glass containing one or more chalcogenide elements sulfur, selenium and tellurium, but excluding oxygen. Such glasses are covalently bonded materials and may be classified as covalent network solids. Polonium is a chalcogenide but is not used because of its strong radioactivity and high price."@en }
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- Chalcogenide_glass comment "Chalcogenide glass (hard \"ch\" as in \"chemistry\") is a glass containing one or more chalcogenide elements sulfur, selenium and tellurium, but excluding oxygen. Such glasses are covalently bonded materials and may be classified as covalent network solids. Polonium is a chalcogenide but is not used because of its strong radioactivity and high price.".