Alkali, Cell and atoms, Chalcogen, Valence or charge transfer

• Br-O-Rb
• Cs-Cu-S
• Br-K-O
• Br-Na-O
• I-Na-O
• effective charge
• non-disordered
• chalcogen
• alkali
• ternary
• trigonal
• tetragonal
• hexagonal
• cubic
• orthorhombic