Definition that contains atomic nucleus
- neutron an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus
- rutherford British physicist (born in New Zealand) who discovered the atomic nucleus and proposed a nuclear model of the atom (1871-1937)
- meson an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0
- nucleon number the sum of the number of neutrons and protons in an atomic nucleus
- mass defect the amount by which the mass of an atomic nucleus is less than the sum of the masses of its constituent particles
- nucleon a constituent (proton or neutron) of an atomic nucleus
- first baron rutherford of nelson British physicist (born in New Zealand) who discovered the atomic nucleus and proposed a nuclear model of the atom (1871-1937)
- mass deficiency the amount by which the mass of an atomic nucleus is less than the sum of the masses of its constituent particles
- pair creation the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus
- alpha decay radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle