Answer
$_{53}^{131}I → _{54}^{131}Xe + _{-1}^{0}e$
Work Step by Step
I-131 decays to Xe-131 by ejecting a beta particle.
Chemistry: The Molecular Science (5th Edition)
by Moore, John W.; Stanitski, Conrad L.
Published by
Cengage Learning
ISBN 10:
1285199049
ISBN 13:
978-1-28519-904-7
Chapter 18 - Nuclear Chemistry - Questions for Review and Thought - Topical Questions - Page 817b: 30a
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