Answer
$^{221}_{87}Fr → ^{217}_{85}At + ^{4}_{2}He$
Work Step by Step
Fr-221 undergoes alpha decay to form At-217
Chemistry: A Molecular Approach (3rd Edition)
by Tro, Nivaldo J.
Published by
Prentice Hall
ISBN 10:
0321809246
ISBN 13:
978-0-32180-924-7
Chapter 19 - Sections 19.1-19.12 - Exercises - Problems by Topic - Page 945: 35b
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