Answer to Question #280619 in Atomic and Nuclear Physics for BIGIRMANA Elie

Question

The sum of a number of proton and neutron is called:

A. Atomic number

B. Mass number

C. Isotopes

D. None of these

Answer 1

The sum of the numbers of protons and neutrons in an atom is called the mass number. Therefore, the correct answer is (B).

Answer:

B. Mass number