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Geeta got a doubt, 'Why atomic nucleus contains proton and neutrons inside it? Why can't electrons and neutrons?' Can you help to clarify her doubt? Explain. |
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Answer» It has a very simple answer. An ATOM primarily consists of neutrons, protons and electrons. Neutrons and protons are present in the nucleus of an atom. Electrons revolve around the nucleus. Protons have a positive charge of +1e (e= 1.6 x 10>-19 Coulombs) and Electrons have a negative charge -1e. Neutrons have zero charge so they are neutral PARTICLES Size matters ultimately, the size of proton is almost equal to the size and mass of neutron. Electron is a very light PARTICLE which moves at a very fast speed. They are hyperactive particles so cannot bind with neutrons due to lack of nuclear and electrostatic force. On the other hand, Proton and neutron can bound together due to PRESENCE of nuclear force. They both have smaller subatomic particles, so when protons or neutrons get close to each other, they exchange particles (mesons), ultimately binding them together. Hope it helps!!!! |
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