Question

distinguish between mass number and atomic number

Answer 1

The main difference between atomic number and mass number is that the atomic number indicates the number of protons present in an atom whereas, the mass number indicates the sum of the number of protons and the number neutrons present in an atom

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Answer 2

Mass number is the sum of total number of proton and neutron.
Atomic number is the no. of proton in the nucleus of an atom of an element.
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