17) The energy of a photon that has a wavelength of 8.33 x 10-6 m is __________ J.
A) 2.20 × 10-26
B) 3.60 × 1013
C) 2.39 × 10-20
D) 2.7 × 109
E) 4.5 × 10-25
18) The frequency of a photon that has an energy of 3.7 × 10-18 J is __________ s-1.
A) 5.6 × 1015
B) 1.8 × 10-16
C) 2.5 × 10-15
D) 5.4 × 10-8
E) 2.5 × 1015
19) The frequency of a photon that has an energy of 8.5 × 10-12 J is __________ s-1.
A) 1.3 × 1022
B) 1.8 × 10-16
C) 2.5 × 10-15
D) 5.4 × 10-8
E) 2.5 × 1015
20) The energy of a photon that has a wavelength of 12.3 nm is __________ J.
A) 1.51 × 10-17
B) 4.42 × 10-23
C) 1.99 × 10-25
D) 2.72 × 10-50
E) 1.62 × 10-17
21) The energy of a photon that has a wavelength of 13.2 nm is __________ J.
A) 9.55 × 10-25
B) 1.62 × 10-17
C) 1.99 × 10-25
D) 4.42 ×
E) 1.51 × 10-17
22) The energy of a photon that has a frequency of 8.21 × 1015 s-1 is __________ J.
A) 8.08 × 10-50
B) 1.99 × 10-25
C) 5.44 × 10-18
D) 1.24 × 1049
E) 1.26 × 10-19
23) The energy of a photon that has a frequency of 1.821 × 1016 s-1 is __________ J.
A) 5.44 × 10-18
B) 1.99 × 10-25
C) 3.49 × 10-48
D) 1.21 × 10-17
E) 5.44 × 10-18
24) What is the frequency (s-1) of a photon that has an energy of 4.38 × 10-18 J?
A) 436
B) 6.61 × 1015
C) 1.45 × 10-16
D) 2.30 × 107
E) 1.31 × 10-9
25) What is the wavelength (angstroms) of a photon that has an energy of 4.38 × 10-18 J?
A) 454
B) 2.30 × 107
C) 6.89 × 1015
D) 1.45 × 10-16
E) 1.31 × 10-9
26) What is the wavelength (angstroms) of a photon that has an energy of 5.69 × 10-17 J?
A) 454
B) 34.9
C) 6.89 × 1015
D) 3.66 × 109
E) 3.50 × 10-9
27) 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
28) A mole of yellow photons of wavelength 527 nm has __________ kJ of energy.
A) 165
B) 227
C) 4.56 × 10-46
D) 6.05 × 10-3
E) 2.74 × 10-19
29) Of the following, __________ radiation has the longest wavelength and __________ radiation has
the greatest energy.
gamma ultraviolet visible
A) ultraviolet, gamma
B) visible, ultraviolet
C) gamma, gamma
D) visible, gamma
E) gamma, visible
30) What color of visible light has the longest wavelength?
A) blue
B) violet
C) red
D) yellow
E) green
31) Of the following, __________ radiation has the shortest wavelength and __________ radiation has
the greatest energy.
gamma ultraviolet visible
A) gamma, visible
B) visible, gamma
C) visible, ultraviolet
D) ultraviolet, gamma
E) gamma, gamma
32) What color of visible light has the highest energy?
A) violet
B) blue
C) red
D) green
E) yellow
33) Using Bohr’s equation for the energy levels of the electron in the hydrogen atom, determine the
of an electron in the n = 4 level.
A) -1.36 × 10-19
B) -5.45 × 10-19
C) -7.34 × 1018
D) -1.84 × 10-29
E) +1.84 × 10-29
34) An electron in a Bohr hydrogen atom has an energy of -1.362 × 10-19 J. The value of n for this
electron is __________.
A) 1
B) 2
C) 3
D) 4
E) 5
35) The energy (J) required for an electronic transition in a Bohr hydrogen atom from n = 2 to n = 3 is
__________ J.
A) 4.00 × 10-19
B) 3.00 × 10-19
C) -3.00 × 10-19
D) -7.90 × 10-19
E) 4.60 × 1014
36) The energy (J) required for an electronic transition in a Bohr hydrogen atom from n = 1 to n = 3 is
__________ J.
A) -8.90 × 10-1
B) 3.00 × 10-19
C) -3.00 × 10-19
D) 1.94 × 10-18
E) 8.90 × 10-1
37) Calculate the energy (J) change associated with an electron transition from n = 2 to n = 5 in a Bohr
hydrogen atom.
A) 6.5 × 10-19
B) 5.5 × 10-19
C) 8.7 × 10-20
D) 4.6 × 10-19
E) 5.8 × 10-53
38) 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
39) A spectrum containing only specific wavelengths is called a __________ spectrum.
A) line
B) continuous
C) visible
D) Rydberg
E) invariant
40) 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
41) When the electron in a hydrogen atom moves from n = 8 to n = 2 light with a wavelength of
__________ nm is emitted.
A) 657
B) 93.8
C) 411
D) 487
E) 389
42) The n = 2 to n = 6 transition in the Bohr hydrogen atom corresponds to the __________ of a photon
with a wavelength of __________ nm.
A) emission, 410
B) absorption, 410
C) absorption, 660
D) emission, 94
E) emission, 390
43) The n = 5 to n = 3 transition in the Bohr hydrogen atom corresponds to the __________ of a photon
with a wavelength of __________ nm.
A) absorption, 657
B) absorption, 1280
C) emission, 657
D) emission, 1280
E) emission, 389
44) The n = 8 to n = 4 transition in the Bohr hydrogen atom occurs in the __________ region of the
electromagnetic spectrum.
A) infrared
B) visible
C) ultraviolet
D) microwave
E) X-ray
45) The n = 8 to n = 2 transition in the Bohr hydrogen atom occurs in the __________ region of the
electromagnetic spectrum.
A) radio
B) X-ray
C) infrared
D) microwave
E) ultraviolet
46) The de Broglie wavelength of a particle is given by __________.
A) h + mv
B) hmv
C) h/mv
D) mv/c
E) mv
47) What is the de Broglie wavelength (m) of a 2.0-kg object moving at a speed of 50 m/s?
A) 6.6 × 10-36
B) 1.5 × 1035
C) 5.3 × 10-33
D) 2.6 × 10-35
E) 3.8 × 1034
48) What is the de Broglie wavelength (m) of a 25-g object moving at a speed of 5.0 m/s?
A) 1.9 × 1032
B) 5.3 × 10-33
C) 6.6 × 10-36
D) 3.32 × 10-36
E) 3.02 × 1045
49) What is the de Broglie wavelength (m) of a 15-g object moving at a speed of 3.0 m/s?
A) 1.9 × 10-32
B) 5.3 × 10-33
C) 1.9 × 10-36
D) 1.5 × 10-32
E) 3.0 × 1045
50) At what speed (m/s) must a 10.0-mg object be moving to have a de Broglie wavelength
of 3.3 × 10-41 m?
A) 4.1
B) 1.9 × 10-11
C) 2.0 × 1012
D) 3.3 × 10-42
E) 1.9 × 1013
51) At what speed (m/s) must a 3.0-mg object be moving in order to have a de Broglie wavelength
of 5.4 × 10-29 m?
A) 1.6 × 10-28
B) 3.9 × 10-4
C) 2.0 × 1012
D) 4.1
E) 6.3
52) The de Broglie wavelength of an electron is 8.7 × 10-11 m. The mass of an electron is 9.1 × 10-31
kg. The velocity of this electron is __________ m/s.
A) 8.4 × 10-3
B) 1.2 × 10-7
C) 6.9 × 10-5
D) 8.4 × 106
E) 8.4 × 10-3
53) The de Broglie wavelength of a bullet (7.5 g) traveling at 700 m/s is __________ m.
A) 7.7 × 1033
B) 1.3 × 10-34
C) 6.2 × 10-29
D) 1.3 × 10-27
E) 1.3 × 10-23
54) 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
55) 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
56) The __________ quantum number defines the shape of an orbital.
A) spin
B) magnetic
C) principal
D) angular momentum
E) psi
57) There are __________ orbitals in the third shell.
A) 25
B) 4
C) 9
D) 16
E) 1
58) The __________ subshell contains only one orbital.
A) 5d
B) 6f
C) 4s
D) 3d
E) 1p
59) There are __________ orbitals in the second shell.
A) 1
B) 2
C) 4
D) 8
E) 9
60) The angular momentum quantum number is 3 in __________ orbitals.
A) s
B) p
C) d
D) f
E) a
61) The n = 1 shell contains __________ p orbitals. All the other shells contain __________ p orbitals.
A) 3, 6
B) 0, 3
C) 6, 2
D) 3, 3
E) 0, 6
62) The lowest energy shell that contains f orbitals is the shell with n = __________.
A) 3
B) 2
C) 4
D) 1
E) 5
63) The principal quantum number of the first d subshell is __________.
A) 1
B) 2
C) 3
D) 4
E) 0