Saddsa

In: Other Topics

Submitted By hjyhjy08
Words 1186
Pages 5
These are sample problems from Chapter 7.

1. What is the wavelength of radiation that has a frequency of 2.10 × 1014 s–1? A. 6.30 × 1022 m B. 7.00 × 102 nm C. 7.00 × 105 m D. 1.43 × 10–6 m E. 3.00 × 108 m

2. Calculate the frequency of visible light having a wavelength of 486.1 nm. A. 2.06 × 1014/s B. 2.06 × 106/s C. 6.17 × 1014/s D. 1.20 × 10–15/s E. 4.86 × 10–7/s

3. What is the energy in joules of a mole of photons associated with visible light of wavelength 486.1 nm? A. 6.46 × 10–16 J B. 6.46 × 10–25 J C. 2.46 × 10–4 J D. 12.4 kJ E. 246 kJ

4. Complete this sentence: Atoms emit visible and ultraviolet light A. as electrons jump from lower energy levels to higher levels. B. as the atoms condense from a gas to a liquid. C. as electrons jump from higher energy levels to lower levels. D. as they are heated and the solid melts to form a liquid. E. as the electrons move about the atom within an orbit.

5. Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 6 to the n = 3 principal energy level. Recall

En = -2.18 × 10–18 J(1/n2) A. 1.64 × 1015/s B. 9.13 × 1013/s C. 3.65 × 1014/s D. 1.82 × 10–19/s E. 2.70 × 1014/s

6. Which one of the following sets of quantum numbers is not possible?

n l ml ms A. 4 3 -2 + 1/2 B. 3 0 1 - 1/2 C. 3 0 0 + 1/2 D. 2 1 1 - 1/2 E. 2 0 0 + 1/2

7. Which one of the following sets of quantum numbers is not possible?

n l ml ms A. 4 3 -2 + 1/2 B. 3…...

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