Answer
Choice A.
Work Step by Step
In the Bohr model, $r_n=n^2a$. Calculate the quantum number for the given radius.
$$1\times10^{-6}m =n^2(0.529\times10^{-10}m)$$
$$n=137\approx 140$$
University Physics with Modern Physics (14th Edition)
by Young, Hugh D.; Freedman, Roger A.
Published by
Pearson
ISBN 10:
0321973615
ISBN 13:
978-0-32197-361-0
Chapter 41 - Quantum Mechanics II: Atomic Structure - Problems - Exercises - Page 1406: 41.70
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