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2. Even–even nucleus - Wikipedia

   en.wikipedia.org/wiki/Even–even_nucleus

   In atomic physics, even–even (EE) nuclei are nuclei with an even number of neutrons and an even number of protons. Even-mass-number nuclei, which comprise 151/251 = ~60% of all stable nuclei, are bosons, i.e. they have integer spin. The vast majority of them, 146 out of 151, belong to the EE class; they have spin 0 because of pairing effects. [1]

3. Even and odd atomic nuclei - Wikipedia

   en.wikipedia.org/wiki/Even_and_odd_atomic_nuclei

   Among the 41 even-Z elements that have a stable nuclide, only two elements (argon and cerium) have no even–odd stable nuclides. One element (tin) has three. There are 24 elements that have one even–odd nuclide and 13 that have two even–odd nuclides. The lightest example of this type of nuclide is 3 2 He and the heaviest is 207 82 Pb.

4. Stable nuclide - Wikipedia

   en.wikipedia.org/wiki/Stable_nuclide

   Also, only four naturally occurring, radioactive odd–odd nuclides have a half-life >10 9 years: potassium-40, vanadium-50, lanthanum-138, and lutetium-176. Odd–odd primordial nuclides are rare because most odd–odd nuclei beta-decay, because the decay products are even–even, and are therefore more strongly bound, due to nuclear pairing ...

5. Isotope - Wikipedia

   en.wikipedia.org/wiki/Isotope

   The 146 even-proton, even-neutron (EE) nuclides comprise ~58% of all stable nuclides and all have spin 0 because of pairing. There are also 24 primordial long-lived even-even nuclides. As a result, each of the 41 even-numbered elements from 2 to 82 has at least one stable isotope, and most of these elements have several primordial isotopes ...

6. Nuclide - Wikipedia

   en.wikipedia.org/wiki/Nuclide

   A set of nuclides with equal proton number (atomic number), i.e., of the same chemical element but different neutron numbers, are called isotopes of the element. Particular nuclides are still often loosely called "isotopes", but the term "nuclide" is the correct one in general (i.e., when Z is not fixed).

7. Beta-decay stable isobars - Wikipedia

   en.wikipedia.org/wiki/Beta-decay_stable_isobars

   Also, the only even neutron numbers with only one beta-decay stable nuclide are 0 (1 H) and 2 (4 He); at least two beta-decay stable nuclides exist for even neutron numbers in the range 4 ≤ N ≤ 160, with exactly two for N = 4 (7 Li and 8 Be), 6 (11 B and 12 C), 8 (15 N and 16 O), 66 (114 Cd and 116 Sn, noting also primordial but not beta ...

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9. Table of nuclides - Wikipedia

   en.wikipedia.org/wiki/Table_of_nuclides

   A chart or table of nuclides maps the nuclear, or radioactive, behavior of nuclides, as it distinguishes the isotopes of an element.It contrasts with a periodic table, which only maps their chemical behavior, since isotopes (nuclides that are variants of the same element) do not differ chemically to any significant degree, with the exception of hydrogen.