University Physics with Modern Physics (14th Edition)

Published by Pearson
ISBN 10: 0321973615
ISBN 13: 978-0-32197-361-0

Chapter 41 - Quantum Mechanics II: Atomic Structure - Problems - Exercises - Page 1403: 41.36

Answer

Nickel.

Work Step by Step

Apply equation 41.48, relating the x-ray energy to Z. $$E_{K_\alpha}=(Z-1)^2(10.2\;eV)$$ $$7460eV=(Z-1)^2(10.2\;eV)$$ $$Z=1+\sqrt{\frac{7460\;eV }{10.2\;eV}}\approx 28$$ The element is nickel.
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.