1) The center of an atom a) Proton b) Nucleus c) electron d) neutron 2) The positive particle in an atom a) proton b) neutron c) electron 3) The particle in an atom with no charge (it is neutral) a) proton b) neutron c) electron 4) The negative particle in an atom a) electron b) proton c) neutron 5) The two particles that make up the nucleus a) proton and electron b) proton and neutron c) electron and neutron

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