Why Does Silicon Dioxide Have High Melting Point
Silicon has a very high melting point due to its giant covalent structure. The large structures the metal oxides and silicon dioxide have high melting and boiling points because a large amount of energy is needed to break the strong bonds ionic or covalent operating in three dimensions. Properties Of Giant Covalent Molecules Macromolecules Silicon has a very high melting point due to its giant covalent structure. . The higher the melting point the more stable is the compound. Since covalent bonds require more energy to overcome than van der waals SiO2 requires a higher temperature than SO3 to melt thus SiO2 has a higher melting point. Silicon Dioxide has a macromoleculargiant covalent structure which means it has covalent bonds between all atoms in its structure. This is due to the strength of Si-O-Si binds in the lattice. Pure silicon has an infinite melting point but most materials of biological origin have melting point...