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A state of matterAnything that occupies space and has mass; contrasted with energy. in which the atomic-scale particles remain close together but are able to change their positions so that the matter takes the shape of its container
Describing the relationship between two groups attached to carbon atomsThe smallest particle of an element that can be involved in chemical combination with another element; an atom consists of protons and neutrons in a tiny, very dense nucleus, surrounded by electrons, which occupy most of its volume. on a benzene-like ring which have one carbon atom between them.