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In the Bohr model of the atom, ________.


A) electrons travel in circular paths called orbitals
B) electrons can have any energy
C) electron energies are quantized
D) electron paths are controlled by probability
E) both A and C

F) A) and E)
G) B) and E)

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Electromagnetic radiation travels through vacuum at a speed of ________ m/s.


A) 186,000
B) 125
C) 3.00 × 108
D) 10,000
E) It depends on wavelength.

F) A) and D)
G) A) and B)

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Of the following transitions in the Bohr hydrogen atom, the ________ transition results in the absorption of the highest-energy photon.


A) n = 2 → n = 5
B) n = 4 → n = 2
C) n = 3 → n = 2
D) n = 5 → n = 2
E) All transitions absorb photons of equivalent energy.

F) D) and E)
G) B) and D)

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Which electron configuration represents a violation of the Pauli exclusion principle?


A) Which electron configuration represents a violation of the Pauli exclusion principle? A)    B)    C)    D)    E)
B) Which electron configuration represents a violation of the Pauli exclusion principle? A)    B)    C)    D)    E)
C) Which electron configuration represents a violation of the Pauli exclusion principle? A)    B)    C)    D)    E)
D) Which electron configuration represents a violation of the Pauli exclusion principle? A)    B)    C)    D)    E)
E) Which electron configuration represents a violation of the Pauli exclusion principle? A)    B)    C)    D)    E)

F) A) and E)
G) B) and C)

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A spectrum containing radiation of specific wavelengths is called a(n)________.

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Which one of the following is an incorrect orbital notation?


A) 2s
B) 3py
C) 3f
D) 4dxy
E) 4s

F) C) and D)
G) B) and E)

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When the electron in a hydrogen atom moves from n = 6 to n = 1, light with a wavelength of ________ nm is emitted.


A) 487
B) 411
C) 434
D) 93.8
E) 657

F) C) and D)
G) C) and E)

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In a px orbital, the subscript x denotes the ________.


A) energy of the electron
B) spin of the electrons
C) probability of the shell
D) size of the orbital
E) axis along which the orbital is aligned

F) C) and E)
G) B) and C)

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The ________ subshell contains only one orbital.


A) 5d
B) 6f
C) 4s
D) 3d
E) 1p

F) None of the above
G) A) and B)

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Which electron configuration represents a violation of the Pauli exclusion principle?


A) Which electron configuration represents a violation of the Pauli exclusion principle? A)    B)    C)    D)    E)
B) Which electron configuration represents a violation of the Pauli exclusion principle? A)    B)    C)    D)    E)
C) Which electron configuration represents a violation of the Pauli exclusion principle? A)    B)    C)    D)    E)
D) Which electron configuration represents a violation of the Pauli exclusion principle? A)    B)    C)    D)    E)
E) Which electron configuration represents a violation of the Pauli exclusion principle? A)    B)    C)    D)    E)

F) All of the above
G) B) and D)

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What color of visible light has the highest energy?


A) violet
B) blue
C) red
D) green
E) yellow

F) B) and D)
G) C) and D)

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The de Broglie wavelength of a car (1.0 × 103 kg) traveling at 75 km/hr is ________ m.


A) 3.2 × 10-38
B) 8.8 × 10-39
C) 3.2 × 10-35
D) 1.4 × 10-35
E) 1.4 × 1035

F) B) and E)
G) B) and D)

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A mole of red photons of wavelength 725 nm has ________ kJ of energy.


A) 2.74 × 10-19
B) 4.56 × 10-46
C) 6.05 × 10-3
D) 165
E) 227

F) B) and E)
G) A) and E)

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The larger the principal quantum number of an orbital, the lower is the energy of the electrons in that orbital.

A) True
B) False

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Which electron configuration represents a violation of Hund's rule for an atom in its ground state?


A) Which electron configuration represents a violation of Hund's rule for an atom in its ground state? A)    B)    C)    D)    E)
B) Which electron configuration represents a violation of Hund's rule for an atom in its ground state? A)    B)    C)    D)    E)
C) Which electron configuration represents a violation of Hund's rule for an atom in its ground state? A)    B)    C)    D)    E)
D) Which electron configuration represents a violation of Hund's rule for an atom in its ground state? A)    B)    C)    D)    E)
E) Which electron configuration represents a violation of Hund's rule for an atom in its ground state? A)    B)    C)    D)    E)

F) A) and E)
G) None of the above

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The wavelength of an electron whose velocity is 1.7 × 104 m/s and whose mass is 9.1 × 10-28 g is ________ m.


A) 4.3 × 10-11
B) 12
C) 4.3 × 10-8
D) 2.3 × 107
E) 2.3 × 10-7

F) C) and E)
G) C) and D)

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What is the frequency (s-1) of electromagnetic radiation that has a wavelength of 0.53 m?


A) 5.7 × 108 s-1
B) 1.8 × 10-9 s-1
C) 1.6 × 108 s-1
D) 1.3 × 10-33 s-1
E) 1.3 × 1033 s-1

F) A) and D)
G) A) and C)

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How many p-orbitals are occupied in a O atom?


A) 5
B) 6
C) 0
D) 3
E) 1

F) A) and C)
G) None of the above

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The frequency of electromagnetic radiation required to promote an electron from n = 2 to n = 4 in a Bohr hydrogen atom is ________ Hz.


A) 4.13 × 10-19
B) 6.17 × 1014
C) 5.46 × 10-19
D) 8.22 × 1014
E) 4.13 × 1019

F) A) and E)
G) C) and D)

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What wavelengths correspond to the visible region of the electromagnetic spectrum?

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