Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 34 - Reading Check Questions (Comprehension) - Page 653: 11


The isotope is Pu-239.

Work Step by Step

When Np-239 emits a beta particle, the mass is unchanged but the atomic number goes up by one, from 93 to 94. A beta particle has a charge of -1e. This is discussed on page 643.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.