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

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

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

Answer: (A)

Think about what lives in the nucleus and what each particle carries in terms of charge. The nucleus contains protons, which are positively charged, and neutrons, which have no charge. Electrons, which are negatively charged, sit outside the nucleus in electron clouds. The particle that has no charge and stays in the nucleus is the neutron. Neutrons add mass to the atom and help hold the nucleus together without changing the overall charge. Protons are positively charged and also in the nucleus, while electrons are outside the nucleus. The nucleus is the center of the atom, not a particle itself.

Think about what lives in the nucleus and what each particle carries in terms of charge. The nucleus contains protons, which are positively charged, and neutrons, which have no charge. Electrons, which are negatively charged, sit outside the nucleus in electron clouds. The particle that has no charge and stays in the nucleus is the neutron. Neutrons add mass to the atom and help hold the nucleus together without changing the overall charge. Protons are positively charged and also in the nucleus, while electrons are outside the nucleus. The nucleus is the center of the atom, not a particle itself.