Question

explain about massnumbe and atomic number​

Answer 1

Answer:

✓mass number= sum of neutron and proton of an atom.

✓atomic number=number of proton inside the atom.

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Answer 2

Answer:

The mass number (symbol a, from the German word atomgewicht [atomic weight]) , also called atomic mass number Or nucleon number is the total number of protons and neutron (together known as nucleon) is an atomic nucleus.