Which subatomic particle has no charge and is located in the nucleus?

• A. Proton
• B. Electron
• C. Neutron
• D. Nucleus

Answer: (C)

The nucleus houses two kinds of subatomic particles: protons and neutrons. Neutrons have no electric charge, so they are neutral and stay inside the nucleus alongside protons. Protons are positively charged and stay in the nucleus, while electrons, which are negatively charged, orbit outside the nucleus. The nucleus is the central region, not a particle itself. Therefore, the particle with no charge located in the nucleus is the neutron. Neutrons contribute to the atom’s mass and help hold the nucleus together; changing their number creates different isotopes.