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Doug Craigen wrote:
>
> The explanation implicitely recognizes a neutron:proton ratio in the
> nucleus without providing any reason why. It doesn't tell a student why
> for example you can not have 120 protons with 1000 neutrons. Surely this
> would provide enough spacing between the protons and enough strong force
> that it should be stable? For that matter why can't we have nuclei of
> one proton with ten neutrons, or of ten neutrons with no protons at
> all?
I wholeheartedly agree. Any help?
The Encyclopedia Britannica has a nice writeup on "nuclear models" in the... including a diagram of the valley of stability.
ATOMS article.