Covalent bonding forms molecules ... Diamond, graphite and graphene are forms of carbon with different giant covalent structures. Metals and alloys - AQA The structure of metals explains their ...

but they also are held together by different bonds and folded into a variety of three-dimensional structures. The folded shape, or conformation, depends directly on the linear amino acid sequence ...

The properties of nanoparticulate substances are different from those of the same substance in bulk. Sample exam questions - bonding, structure and matter - AQA Understanding how to approach exam ...