65) What is the maximum number of p orbitals that are possible?
A) 1
B) 3
C) 7
D) 5
E) 9
66) What is the maximum number of d orbitals that are possible?
A) 1
B) 3
C) 7
D) 5
E) 9
67) What is the maximum number of f orbitals that are possible?
A) 1
B) 3
C) 7
D) 5
E) 9
Algorithmic Questions
1) Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. The
frequency of this light is ________ s-1.
A) 5.71 × 1014
B) 5.71 × 105
C) 1.58 × 102
D) 1.58 × 1011
E) 1.75 × 10-15
2) An FM radio station broadcasts electromagnetic radiation at a frequency of 100.6 MHz. The
wavelength of this radiation is ________ m.
A) 2.982 × 106
B) 2.982
C) 3.018 × 1016
D) 3.018 × 1010
E) 0.3353
3) Place the following types of electromagnetic radiation in order of increasing wavelength.
visible light gamma rays microwaves
A) gamma rays< microwaves <visible light
B) microwaves < visible light <gamma rays
C) microwaves < gamma rays < visible light
D) visible light < gamma rays <microwaves
E) gamma rays < visible light < microwaves
4) Place the following types of electromagnetic radiation in order of increasing frequency.
x-rays microwaves gamma rays
A) microwaves < x-rays< gamma rays
B) gamma rays < x-rays < microwaves
C) microwaves < gamma rays < x-rays
D) gamma rays < microwaves < x-rays
E) x-rays < gamma rays < microwaves
5) Place the following types of electromagnetic radiation in order of decreasing energy.
gamma rays radio waves microwaves
A) radio waves > microwaves > gamma rays
B) gamma rays > microwaves > radio waves
C) radio waves > gamma rays > microwaves
D) gamma rays > radio waves >microwaves
E) microwaves > radio waves > gamma rays
6) Identify the color that has a wavelength of 680 nm.
A) blue
B) green
C) red
D) yellow
7) Identify the color that has a wavelength of 460 nm.
A) blue
B) green
C) red
D) yellow
8) Identify the color that has a wavelength of 540 nm.
A) blue
B) green
C) red
D) yellow
9) Calculate the wavelength (in nm) of a the red light emitted by a neon sign with a frequency of 4.92 ×
1014 Hz.
A) 610 nm
B) 164 nm
C) 492 nm
D) 792 nm
E) 192 nm
10) Calculate the frequency of the red light emitted by a neon sign with a wavelength of 690 nm.
A) 2.30 × 1014 s-1
B) 3.90 × 1014 s-1
C) 4.35 × 1014 s-1
D) 5.05 × 1014 s-1
E) 3.45 × 1014 s-1
11) Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. The
energy of one photon of this light is ________ J.
A) 1.04 × 10-31
B) 3.79 ×
C) 3.79 ×
D) 1.04 × 10-22
E) 2.64 × 1018
12) How many photons are contained in a burst of yellow light (589 nm) from a sodium lamp that
contains 630 kJ of energy?
A) 2.12 × 1013 photons
B) 3.06 × 1030 photons
C) 1.87 × 1024 photons
D) 4.03 × 1028 photons
E) 2.48 × 1025 photons
13) How much energy (in kJ) do 3.0 moles of photons, all with a wavelength of 665 nm, contain?
A) 160 kJ
B) 360 kJ
C) 406 kJ
D) 540 kJ
E) 246 kJ
14) Electromagnetic radiation with a wavelength of 531 nm appears as green light to the human eye. The
energy of one photon of this light is 3.74 × 10-19 J. Thus, a laser that emits 1.3 × 10-2 J of energy in a
pulse of light at this wavelength produces ________ photons in each pulse.
A) 2.9 ×
B) 9.2 × 10-24
C) 1.8 ×
D) 3.5 ×
E) 6.5 ×
15) The de Broglie wavelength of an electron with a velocity of 6.00 × 106 m/s is ________ m. The
mass of the electron is 9.11 × 10-28 g.
A) 8.25 × 109
B) 8.25 × 1012
C) 1.21 × 10-16
D) 1.21 × 10-13
E) 1.21 × 10-10
16) Determine the mass of a ball with a velocity of 35.0 m/s and a wavelength of 8.92 x 10-34 m.
A) 26.0 g
B) 594 g
C) 2.07 g
D) 47.1 g
E) 21.2 g
17) Determine the velocity of a marble (m = 8.66 g) with a wavelength of 3.46 × 10-33 m.
A) 45.2 m/s
B) 2.21 m/s
C) 22.1 m/s
D) 38.8 m/s
E) 52.9 m/s
18) Which of the following transitions (in a hydrogen atom) represent emission of the longest
wavelength photon?
A) n = 1 to n = 3
B) n = 3 to n = 2
C) n = 3 to n = 4
D) n = 4 to n = 2
E) n = 5 to n = 4
19) Which of the following transitions (in a hydrogen atom) represent absorption of the smallest
frequency photon?
A) n = 5 to n = 6
B) n = 5 to n = 3
C) n = 2 to n = 1
D) n = 1 to n = 3
E) n = 1 to n = 2
20) Choose the transition (in a hydrogen atom) below that represents the absorption of the shortest
wavelength photon.
A) n = 1 to n = 2
B) n = 2 to n = 3
C) n = 4 to n = 5
D) n = 6 to n = 3
E) n = 3 to n = 1
21) Which of the following transitions represent the emission of a photon with the largest energy?
A) n = 2 to n = 1
B) n = 3 to n = 1
C) n = 6 to n = 4
D) n = 1 to n = 4
E) n = 2 to n = 4
22) What are the possible values of n and ml for an electron in a 3d orbital?
A) n = 1, 2, or 3 and ml = 2
B) n = 1, 2, or 3 and ml = -2, –1, 0, +1, or +2
C) n = 3 and ml = 2
D) n = 4 and ml = -2, -1, 0, +1, +2
23) How much energy (in kJ) is required to ionize 2.78 moles of hydrogen atoms?
A) 1.83 × 103 kJ
B) 1.67 × 103 kJ
C) 6.06 × 103 kJ
D) 3.65 × 103 kJ
E) 5.89 × 103 kJ
24) How many different values of ml are possible in the 5d sublevel?
A) 2
B) 1
C) 3
D) 5
E) 7
25) How many different values of ml are possible in the 2p sublevel?
A) 4
B) 1
C) 3
D) 5
E) 7
26) Give all possible values of l for a 2 sublevel.
A) 2
B) -1/2
C) 0, 1
D) -1, 0, 1
E) 1, 2
27) Give the value of l for a 3p sublevel.
A) 1
B) -4
C) -1
D) 2
E) -2
28) Identify the correct values for a 1s sublevel.
A) n = 3, l = 1, ml = 0
B) n = 2, l = 1, ml = 1
C) n = 1, l = 0, ml = 0
D) n = 2, l = 0, ml =-1
E) n = 4, l = -1, ml = -2
29) Identify the correct values for a 2p sublevel.
A) n = 3, l = 1, ml = 0
B) n = 2, l = 1, ml = +2
C) n = 1, l = 0, ml = 0
D) n = 2, l = 1, ml = 0
E) n = 4, l = -1, ml = 0
30) Identify the correct values for a 3p sublevel.
A) n = 3, l = 1, ml = 0
B) n = 2, l = 1, ml = +2
C) n = 1, l = 0, ml = 0
D) n = 2, l = 0, ml = 0
E) n = 4, l = -1, ml = -2
31) Identify the correct values for a 4f sublevel.
A) n = 3, l = 1, ml = 0
B) n = 2, l = 1, ml = 2
C) n = 1, l = 0, ml = 0
D) n = 2, l = 0, ml = 0
E) n = 4, l = 3, ml = -2
32) In which orbital below would an electron (on average) be closest to the nucleus?
A) 2p
B) 4s
C) 2s
D) 5d
E) 2p
33) In which orbital below would an electron (on average) be farthest from the nucleus?
A) 1s
B) 4f
C) 3s
D) 3d
E) 2p
34) How many subshells are there in the shell with n = 4?
A) 3
B) 4
C) 6
D) 18
35) What are the possible values of l if n = 6?
A) 6
B) 0, 1, 2, 3, 4, or 5
C) -4, -3, -2, -1, 0, +1, +2, +3, or +4
D) -5, -4, -3, -2, -1, 0, +1, +2, +3, +4, or +5
36) How many orbitals are there in the fourth shell?
A) 3
B) 4
C) 6
D) 16
37) Each of the following sets of quantum numbers is supposed to specify an orbital. Which of the
following sets of quantum numbers contains an error?
A) n = 2, l = 1, ml = +1
B) n = 4, l = 2, ml =0
C) n = 3, l =3, ml = -2
D) n = 1, l = 0, ml =0
E) n = 3, l = 0, ml =0
38) Each of the following sets of quantum numbers is supposed to specify an orbital. Choose the one set
of quantum numbers that does not contain an error.
A) n = 2, l = 2, ml =+1
B) n = 2, l = 2, ml =0
C) n = 3, l = 2, ml =-3
D) n = 4, l = 3, ml =-2
E) n = 4, l = 2, ml =+4
39) Each of the following sets of quantum numbers is supposed to specify an orbital. Choose the one set
of quantum numbers that does not contain an error.
A) n = 4, l = 4, ml =0
B) n = 3, l = 2, ml =+3
C) n = 4, l = 0, ml =-1
D) n = 3, l = 1, ml = -2
E) n = 5, l = 3, ml =-3
40) How many different values of ml are possible in the 5f sublevel?
A) 1
B) 7
C) 4
D) 6
E) 2
41) For a hydrogen atom, which electronic transition would result in the emission of a photon with the
highest energy?
A) 2s → 3p
B) 2p → 6d
C) 6p → 4s
D) 7f → 5d
42) For hydrogen, what is the wavelength of the photon emitted when an electron drops from a 4d
orbital to a 2p orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10-2 nm-1.
A) 656.3 nm
B) 486.2 nm
C) 364.6 nm
D) 2.057 × 10-3 nm
24
Matching Questions
Match the following.
A) 1280 nm
B) 7460 nm
C) 103 nm
D) 122 nm
E) 657 nm
1) n = 1 to n = 2
Diff: 3 Page Ref: 7.5
2) n = 3 to n = 1
Diff: 3 Page Ref: 7.5
3) n = 2 to n = 3
Diff: 3 Page Ref: 7.5
4) n = 6 to n = 5
Diff: 3 Page Ref: 7.5
5) n = 5 to n = 3
Diff: 3 Page Ref: 7.5
Short Answer Questions
1) Define diffraction.
2) Define constructive interference.
3) What is the photoelectric effect?
4) Why do atoms only emit certain wavelengths of light when they are excited? (Why do line spectra
exist?)
5) Describe how a neon light works.
6) Why don’t we observe the wavelength of everyday macroscopic objects?
7) How many orbitals are contained in the n = 2 level? Give the l and ml values of each of them.
8) Sketch one of the 3p orbitals below. How are they different from the 2p orbitals?
9) Give an example of a d orbital.
10) Give an example of a p orbital.