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Neutron Number Compared to Protons

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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?

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Why the number of neutrons increase after the element Iron as compare to proton.

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

The nucleus of an atom is made up of positively charged protons. Because like charges repel, there is a great amount ...

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