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  1. Neutron - Wikipedia

    Free neutron beams are obtained from neutron sources by neutron transport. For access to intense neutron sources, researchers must go to a specialized neutron facility that operates a …

  2. Neutron | Definition, Charge, Mass, Properties, & Facts | Britannica

    Dec 28, 2025 · neutron, neutral subatomic particle that, in conjunction with protons, makes up the nucleus of every atom except ordinary hydrogen (whose nucleus has one proton and no …

  3. Neutrons: Facts about the influential subatomic particles

    Dec 4, 2022 · Specifically, a neutron contains one 'up' and two 'down' quarks. Particles made from three quarks are called baryons, and hence baryons contribute to all the baryonic 'visible' …

  4. DOE Explains...Neutrons - Department of Energy

    Fast Facts The neutron was first discovered in 1932. All around us is a faint, natural “background” of free neutrons created by cosmic rays entering our atmosphere and by natural radioactivity …

  5. Science Made Simple: What Are Neutrons? - SciTechDaily

    Jun 10, 2023 · Neutrons, subatomic particles found in every atom except hydrogen, are used in scientific research for nondestructive analysis of materials through a method called neutron …

  6. Neutron - Wikiwand

    A neutron is a subatomic particle, symbol n or n0, that has no electric charge, and a mass slightly greater than that of a proton. The neutron was discovered by...

  7. Neutron Basics | Understanding Particles

    May 29, 2024 · A neutron is one of the three main particles that make up an atom, the other two being protons and electrons. Unlike protons and electrons, neutrons do not possess a charge; …

  8. Neutron - CK-12 Foundation

    Jan 1, 2026 · Summary A neutron is one of three main particles that make up the atom. It is found in the nucleus and is neutral in electric charge. It has about the same mass and diameter as a …

  9. Neutrons - GeeksforGeeks

    Jul 23, 2025 · Neutron, neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen. Neutrons and protons are together termed nucleons since they …

  10. NEUTRON Definition & Meaning - Merriam-Webster

    The meaning of NEUTRON is an uncharged elementary particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus.