Chalcogen, Metalloid, Pnictogen, Jcrgae

• Br-C-H-N-S-Sb
• B-Bi-O
• Bi-Te
• Bi-Ge-O
• As-F-Fe-Nd-O
• structural properties
• electronic and electrical properties
• optical properties
• phase transitions
• conductivity or resistivity
• pnictogen
• metalloid
• chalcogen
• transitional
• ternary
• orthorhombic
• trigonal
• tetragonal
• cubic
• hexagonal