Question

why proton is present in nucleus not electron

Answer 1

Here is your answer..
Electrons belong to a class of particles called Leptons, which do not interact via the strong nuclear force (the strongest fundamental force). Due to their electrostatic repulsion, electrons cannot be confined to the nucleus.

Protons and neutrons, on the other hand, are Hadrons, and are affected by the strong nuclear force, which easily overcomes electrostatic force in short range. They are pretty comfy staying inside the nucleus.

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Answer 2

Hey mate here is your answer!!!

Electron belongs to class of particles called lepton,which do not interact via the strong nuclear force.(the strongest fundamental force.)due to their electrostatic repulsion elections can not confined to the nucleus.

protons on other hand are hardons and are affected by the strong nuclear force which easily overcome electrostatic force in short range.they are pretty comfy staying inside the nucleus.


hope this helps....