Final answer:
Electron, proton, and neutron are fundamental particles in an atom's structure.
Explanation:
Electron is the particle that travels around the nucleus of an atom in orbitals. It carries the smallest unit of negative charge and is essential in forming chemical bonds.
Protons are positively charged particles located in the nucleus of an atom, and they are composed of three quarks, playing a crucial role in determining the element's identity.
Neutrons are neutral particles found in the nucleus of an atom, also composed of three quarks, contributing to the atom's stability.
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