Answer:
a. composed of randomly arranged atoms
Explanation:
Glass is the given name of any amorphous (non-crystalline, highly disordered structure) solid that displays a glass transition near it's melting point. The most common type of glass we encounter is silicate glass, which consists of silica or silicon dioxide, the crystalline form of this mineral is called quartz, when it's non-crystalline is called glass.
Oxides that form glasses are known as network formers, to achieve a glass structure the oxide cations will bind with oxygen atoms to form tetrahedral networks. Although glass can contain covalent bonds (Si O Si linkages) they can also have ionic bonds between positive and negative ions.
Therefore the most suitable form to describe the structure of glass is a material composed of randomly arranged atoms.
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