Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 40 - All About Atoms - Problems - Page 1247: 10d

Answer

There are 18 electron states in the $n=3$ shell.

Work Step by Step

For each $n$, the total number of electron states in the shell is $2n^2$ We can find the number of electron states in the $n=3$ shell: $2n^2 = (2)(3)^2 = 18$ There are 18 electron states in the $n=3$ shell.
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