Chemistry: The Central Science (13th Edition)

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

Chapter 21 - Nuclear Chemistry - Exercises - Page 947: 21.23c

Answer

Calcium-40 has magic numbers of both protons and neutrons.

Work Step by Step

It has 20 protons and 20 neutrons. 20 is a magic number for stability.
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