The properties of glass explained by the bonding of Silicon and Oxygen.

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…ections. This results in glass being very hard, but very brittle. This hardness results because the atoms are so strongly bound to each other. These strong bonds imply that glass is not ductile or malleable and that the bonds break as the lattice is distorted. Also resulting from the atoms being covalently bound is that the electrons in the network are localised. Thus, glass does not conduct electricity efficiently enough to be classified as conductive.