what does the mass number represent?\nnumber of protons\ntotal number of nucleons\nnumber of…

what does the mass number represent?\nnumber of protons\ntotal number of nucleons\nnumber of neutrons\naverage atomic mass

what does the mass number represent?\nnumber of protons\ntotal number of nucleons\nnumber of neutrons\naverage atomic mass

Answer

Brief Explanations:

The mass number of an atom is the sum of the number of protons and neutrons in the nucleus. Protons and neutrons are collectively called nucleons. So the mass number represents the total number of nucleons.

Answer:

Total number of nucleons