Final answer:
Protons, neutrons, and electrons have distinct properties and roles in the structure of an atom.
Explanation:
Protons are positively charged particles with a relative mass of 1. Neutrons have no charge and a relative mass of 1. Electrons are negatively charged particles with a much smaller mass compared to protons and neutrons.
The structure of an atom consists of a nucleus containing protons and neutrons, surrounded by electrons in shells or energy levels. Protons and neutrons are located in the nucleus, while electrons exist in various energy levels around the nucleus.
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