Which of the following is a correct set of quantum numbers for an electron in a 5f orbital?
A. n = 5, I = 3, mI = +1
B. n = 5, I = 2, mI = +3
C. n = 4, I = 3, mI = 0
D. n = 4, I = 2, mI = +1
Correct Answer: A. n = 5, I = 3, mI = +1
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The quantum number that specifies the way the orbital is oriented in space is:
A. the electron spin quantum number
B. the magnetic quantum number
C. the angular momentum quantum number
D. the principal quantum number
Correct Answer: B. the magnetic quantum number
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Which of the following has the largest wavelength?
A. visible light
B. x-rays
C. infrared light
D. ultraviolet radiation
Correct Answer: C. infrared light
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Green light has a wavelength of 5200A. Calculate the energy of one photon of green light.
A. 3.4 x 10-40 J
B. 3.4 x 10-30 J
C. 3.8 x 10-26 J
D. 3.8 x 10-19 J
Correct Answer: D. 3.8 x 10-19 J
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The size of an atomic orbital is associated with
A. principal quantum number (n)
B. angular momentum quantum number (I)
C. magnetic quantum number (mI)
D. spin quantum number (ms)
Correct Answer: A. principal quantum number (n)
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In the quantum mechanical treatment of the hydrogen atom, which one of the following combinations of quantum numbers is not allowed?
A. 3, 1, -1
B. 3, 2, 2
C. 3, 2, -1
D. 3, 3, 2
Correct Answer: D. 3, 3, 2
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“Each electron in an atom must have its own unique set of quantum numbers” is a statement of
A. Aufbau principle
B. Pauli exclusion principle
C. Hund’s rule
D. Periodic law
Correct Answer: B. Pauli exclusion principle
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