Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 42 - Nuclear Physics - Questions - Page 1302: 12b

Answer

This transition is best represented by arrow $g$

Work Step by Step

When a nucleus undergoes an $\alpha$ decay, a helium nucleus is emitted. Note that a helium nucleus consists of two protons and two neutrons. Thus, the number of nucleons $A$ decreases by 4, while the number of protons $Z$ decreases by 2. This transition is best represented by arrow $g$
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