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Answer:

The nucleus of the atom contains the protons and neutrons. The protons are positively charged while the neutrons have no charge; they are neutral. The outer part of the atom contains the electrons and shells or orbits. The electrons are negatively charged while the shells or orbits hold the atoms in its place.

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Since the nucleus contains protons and neutrons, most of the mass of an atom is concentrated in its nucleus. Protons and electrons have electrical charges that are equal and opposite.

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