Question

why does an atomic number not change during a chemical reaction?

Answer 1

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$\underline\bold {Question : why \: does \: an \: atomic \: number \: not \: change \: during \: a \: chemical \: reaction?}$

↪ Atomic number of an element is nothing but number of protons.

↪ During a chemical reaction, the number of electrons only changes, but the number of protons does not change. So, the atomic number does not change.

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