The parts of an atom is nucleus, proton, electron, and neutron.
Protons is positive and is located at the nucleus. It is attached to the neutrons. It does not move. Its at the center.
Electrons is negative and it moves around the nucleus.
Neutron is neither negative or positive and does not move. It is attached to the protons and located at the nucleus. Its at the center.
Nucleus is the center and is where the protons and the neutrons are.