Answer
The answer is below.
Work Step by Step
Mass number is the total number of neutrons and protons in an atom. Contrarily, atomic mass gives the average mass of the isotopes of a given element.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.