Introductory Chemistry (5th Edition)

Published by Pearson
ISBN 10: 032191029X
ISBN 13: 978-0-32191-029-5

Chapter 17 - Radioactivity and Nuclear Chemistry - Exercises - Questions - Page 637: 20

Answer

The helium particle emitted demonstrates alpha decay. Protactinium is the parent nuclei, since it appears to the left, before the arrow. Actinium is the daughter nuclei.

Work Step by Step

The helium particle emitted demonstrates alpha decay. Protactinium is the parent nuclei, since it appears to the left, before the arrow. Actinium is the daughter nuclei.
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