Particles {neutron}| similar to protons in mass have no charge. Neutron has three quarks, two down and one up. Free neutrons have lifetime 1000 seconds before they decay to proton. Neutrons in atoms are stable, because, in nuclei, strong nuclear force lowers neutron energy, so neutrons do not decay.
Physical Sciences>Physics>Matter>Particle>Subatomic>Fermion>Baryon
5-Physics-Matter-Particle-Subatomic-Fermion-Baryon
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Date Modified: 2022.0224