proton, a subatomic particle with a postive charge. located in the nucleus., electron, a subatomic particle with a negative charge. located outside the nucleus., neutron, a subatomic particle with a neutral charge. located in the nucleus., electron cloud, the atomic model described in the area surrounding the nucleus where electrons exist, Bohr model, the atomic model where electrons move around the nucleus in energy levels, subatomic particles, parts of atoms-protons, neurons, and electrons

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