Alkali, Cell and atoms, Chalcogen, Electronic energy gap

• Al-H-Na-O-Si
• H-Na-O-P
• H-K-O-P
• C-H-K-N-O
• B-H-Na-O
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• chalcogen
• alkali
• non-disordered
• transitional
• monoclinic
• orthorhombic
• trigonal
• cubic
• triclinic