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Atomic Structure Practice Questions

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Updated on Sep 24, 2011

Review the following concepts if needed - Atomic Structure Study Guide

Practice Questions

1. What is the wavelength in nm if the frequency is 1.50 * 1014 Hz?
2. What is the energy of a photon if the frequency is 3.34 * 1012 Hz?
3. What is the frequency if the wavelength is 650 nm?
4. What is the frequency if the energy of the photon is 9.63 * 10–22 J?

 

Calculate the energy and wavelength for the following transitions:

5. n = 1 to n = 5
6. n = 4 to n = 2
7. n = 8 to n = 1
8. n = ∞ to n = 2

 

Are the following possible sets of quantum numbers? Explain.

9. (0, 0, 0, )
10. (2, 1, 2, )
11. (3, 2,–1, )
12. (4, 0, 0, )
13. (3, 2, 2, 1)

 Answers

1. 2.00 * 103 nm
2. 2.21 * 10– 21 J
3. 4.6 * 1014 Hz
4. 1.45 * 1012 Hz
5. E = 2.09 * 10–18 J, λ = 94.9 nm
6. E = –4.09 * 10–19 J, λ = 486 nm
7. E = –2.15 * 10–18 J, λ = 92.6 nm
8. E = –5.45 * 10–19 J, λ = 364 nm
9. no, n ≠ 0
10. no, ml must be –1, 0, or 1 when l = 1
11. yes
12. yes
13. no, m5 can only be
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