About 34,800 results
Open links in new tab
  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 research …

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

    Jan 29, 2026 · 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 neutrons).

  3. What Is a Neutron? Physics and Chemistry Definition

    Dec 13, 2018 · Each neutron is a type of subatomic particle called a baryon that consists of 1 up quark and 2 down quarks. The existence of the neutron was proposed by Ernest Rutherford in 1920.

  4. Neutron: Definition, Characteristics, & Location with Example

    Feb 3, 2023 · A neutron is an uncharged sub-atomic particle found in all atomic nuclei and has a mass similar to a proton. A neutron is thus one of the three particles that constitute an atom.

  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 scattering.

  6. What is Neutron | Definition & Properties | nuclear-power.com

    A neutron is one of the subatomic particles that make up matter. The neutron has no electric charge and a rest mass equal to 1.67493E−27 kg — marginally greater than that of the proton but nearly 1839 …

  7. 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.

  8. 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 from the …

  9. 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' matter in the...

  10. 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; they are …