In Group 16 silicon dioxide can be a quite common compound that commonly takes place as sand or quartz. SiO2 is tetrahedral with each silicon atom surrounded by 4 oxygen atoms. Many crystalline types exist Along with the tetrahedra associated with variety a polymeric chain. Illustrations are tridymite and cristobalite. https://nanosiliconpowder27047.blogerus.com/60648202/5-essential-elements-for-advanced-ceramics