Chalcogen, Transitional, Si, Values of electronic energy gap

• Fe-O-Si
• H-Na-O-Si-Zr
• Al-Fe-H-Mg-O-Si
• H-Na-O-Si-Ti
• Ag-Al-H-O-Si
• chalcogen
• transitional
• metalloid
• disordered
• monoclinic
• orthorhombic
• hexagonal
• trigonal
• tetragonal