15. what is the mass number equal to?\nnumber of protons plus number of neutrons\nnumber of electrons plus…
15. what is the mass number equal to?\nnumber of protons plus number of neutrons\nnumber of electrons plus number of neutrons\nnumber of electrons plus number of protons
Answer
Brief Explanations:
In atomic structure, the mass number of an atom is defined as the sum of the number of protons and neutrons in its nucleus. Electrons have negligible mass compared to protons and neutrons and are not included in the calculation of the mass number.
Answer:
Number of protons plus number of neutrons