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Isodiapher
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In nuclear physics and radioactivity, isodiaphers refers to nuclides which have different atomic numbers and mass numbers but the same neutron excess, which is the difference between numbers of neutrons and protons in the nucleus. For example, for both and , the difference between the neutron number (N) and proton number (Z) is N − Z = 54. One large family of isodiaphers has zero neutron excess, N=Z. It contains many primordial isotopes of elements up to calcium. It includes ubiquitous , , and . The daughter nuclide of an alpha decay is an isodiapher of the original nucleus.<ref name=sharma /> Similarly, beta decays (and other weak-force-involving decays) produce isobars. |
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