A substance is tested in a lab. It is found to maintain a unique shape and is a good conductor of electricity. If it is made up of electrons, protons, and neutrons, what state of matter is this substance most likely to be?

A substance that maintains a unique shape is most likely a solid; liquids and gases take the shape of their containers, and plasma does not keep a fixed shape. Some solids, such as metals, conduct electricity well. The particles being made of electrons, protons, and neutrons does not change this identification, so the answer is solid.

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