Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 2 - Atoms, Molecules, and Ions - Exercises: 2.25a

Answer

Atomic number is the number of protons in an atom. The mass number is the number of (protons + neutrons) in an atom.

Work Step by Step

Atomic number is the number of protons in an atom. The mass number is the number of (protons + neutrons) in an atom.
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