Why number of neutron increase after the element iron

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Reference no: EM13112312

Q1: why does the number of neutron increase after the element Iron "Fe" as compare to proton? "while element 1 through 56".

Q2: Up to Iron "Fe", the number of proton and neutron are about equal, after Fe the number of neutron began to rapidly increase, with respect to the number of proton, why?

 

Reference no: EM13112312

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