Of protons neutrons and electrons, which of these can never change in atom during an ordinary chemical or physical change

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01-10-2017
Chemistry

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Of protons neutrons and electrons, which of these can never change in atom during an ordinary chemical or physical change

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The number of electron or proton of an atom can change depending on the chemical bond and the other chemical it is bonded with; an atom can either gain or lose electron. However, the number of neutrons of an atom can never change, this is the primary identity or signature of an atom.

Answer:

neutrons

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