neutron /neu·tron/ (noo´tron) an electrically neutral or uncharged particle of matter existing along with protons in the nucleus of atoms of all elements except the mass 1 isotope of hydrogen. Symbol n.
neutron
neutron [noo´tron]
neutron (nōōˑ·tr
n),
neutron (noo´tron),
neu·tron (n  tr n )n. An electrically neutral subatomic particle in the baryon family, having a mass 1,839 times that of the electron, stable when bound in an atomic nucleus, and having a mean lifetime of approximately 1.0×103 seconds as a free particle. It and the proton form nearly the entire mass of atomic nuclei. |
neutron
[n(y)o̅o̅′tron]
Etymology: L, neuter, neither; Gk, elektron, amber
neutron [noo´tron]
an electrically neutral or uncharged particle of matter existing along with protons in the atoms of all elements except the mass 1 isotope of hydrogen.
neutron (nōōˑ·tr
n),n the neutral subatomic particle located within the nucleus of an atom. Its mass is equivalent to that of a proton.
neutron (noo´tron),
n an elementary particle with approximately the mass of a hydrogen atom but without any electrical charge; one of the constituents of the atomic nucleus.
neutron activation analysis,
n an activation analysis in which the specimen is bombarded with neutrons. Identification is made by measuring the resulting radioisotopes.
neutron ray,
n See ray, neutron.
neutron
an electrically neutral or uncharged particle of matter existing along with protons in the atoms of all elements except the mass 1 isotope of hydrogen.
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