Answer:
The nucleus contains protons and neutrons. Protons have a positive charge and neutrons have no charge. Therefore, the overall charge of the nucleus is positive. Remember that electrons (particles with negative charges are located outside of the nucleus, in the electron clouds).
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The nucleus of an atom consists of protons and neutrons. The proton has a positive charge (+1) while the neutron is neutral (0). This makes the charge of the nucleus overall positive.
