Eine neue Gesetzmäßigkeit in der Häufigkeitsverteilung der Isotope: der N₄-Effekt

Summary

It is demonstrated that the classes of atoms with an even number of neutrons, hitherto regarded as homogeneous, i.e. them-even,z-even, and them-uneven,z-uneven, split up into two groups respectively withN=4n andN=4n+2. The latter have as a rule a considerably greater relative frequency (stability) than the former. The effect can only be explained as a formation ofN ₄-layers. The hypothesis that only twofold layers are existent in the core therefore can no longer be maintained.