As2S3, Chalcogen, Metalloid, Pnictogen, Sulfide

• As-S
• As-S-Se
• As-Se
• optical properties
• thermal and thermodynamic properties
• electronic and electrical properties
• electronic energy gap
• mechanical properties
• metalloid
• pnictogen
• chalcogen
• binary
• sulfide
• monoclinic
• orthorhombic
• triclinic