Definition:Strong Nuclear Force
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Definition
The strong nuclear force is a force which acts in the range of the order of $10^{-15} \ \mathrm m$.
It is what holds protons and neutrons together in the nucleus of an atom.
Beyond the range of approximately the diameter of a large atom its effect is diminished.
This may be the reason why stable isotopes of large atoms are rare.
Sources
- 1990: I.S. Grant and W.R. Phillips: Electromagnetism (2nd ed.) ... (previous) ... (next): Chapter $1$: Force and energy in electrostatics: $1.1$ Electric Charge (footnote $*$)