Which statement correctly describes a neutron?

• A. Has a negative charge and is in the nucleus
• B. Has no charge and is found in the nucleus
• C. Has a positive charge and orbits the nucleus
• D. Is a massless particle that mediates forces

Answer: (B)

Neutrons are neutral subatomic particles that reside in the atomic nucleus along with protons. They have no electric charge and contribute to the nucleus’s mass and stability, while electrons orbit the nucleus and carry negative charge. The statement that correctly describes a neutron is that it has no charge and is found in the nucleus. The other descriptions mix up charge, location, or particle type: a negatively charged particle in the nucleus would be inconsistent with a neutron, a positively charged particle that orbits the nucleus doesn’t match how particles are arranged, and a massless particle that mediates forces refers to force-carrying bosons like photons, not neutrons.