Chemistry: The Central Science (13th Edition)

by Brown, Theodore E.; LeMay, H. Eugene; Bursten, Bruce E.; Murphy, Catherine; Woodward, Patrick; Stoltzfus, Matthew E.

Published by Prentice Hall

ISBN 10: 0321910419

ISBN 13: 978-0-32191-041-7

Chapter 2 - Atoms, Molecules, and Ions - Exercises - Page 75: 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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