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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 11, 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. 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 …

  4. 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' …

  5. What Is a Neutron? Physics and Chemistry Definition

    Dec 13, 2018 · Get the definition of a neutron in chemistry in physics. Learn interesting facts about neutrons and their role within an atom.

  6. 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; …

  7. Neutron - CK-12 Foundation

    Dec 1, 2025 · 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 …

  8. 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 James Chadwick in 1932, …

  9. 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 …

  10. Neutrons — Structure & Properties - Expii

    Neutrons What is a neutron? A neutron is a neutrally charged subatomic particle that helps make up the nucleus of an atom. Neutrons have no charge unlike protons or electrons. Neutrons …