In group 16 silicon dioxide is a quite common compound that broadly takes place as sand or quartz. SiO2 is tetrahedral with Every silicon atom surrounded by 4 oxygen atoms. A lot of crystalline forms exist Together with the tetrahedra associated with form a polymeric chain. Examples are tridymite and cristobalite. A significantly less prevalent oxi

Group 1 and a couple of silicides e.g. Na2Si and Ca2Si react with h2o, yielding hydrogen and/or silanes. At Buyer Electronics Display (CES) 2012 a secure and eco-pleasant 1kWh or 3kWh potential cell phone charger with sodium silicide that runs on drinking water has introduced for 'folks who devote time away from the electric power grid'. For the