Kärnmättnad
Kärnmättnad, often translated as nuclear saturation, is a concept in nuclear physics describing a fundamental property of atomic nuclei. It refers to the observation that the binding energy per nucleon (proton or neutron) in a nucleus reaches a maximum and then levels off for nuclei heavier than a certain size. This suggests that each nucleon interacts with only a limited number of its neighbors, rather than with all other nucleons in the nucleus.
This limited range of the nuclear force is a key aspect of kärnmättnad. The strong nuclear force,
The phenomenon of kärnmättnad explains why very large nuclei tend to be unstable. If the attractive force