Multiple
Choice
Identify the letter of the choice that best completes the statement or answers the
question.
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1.
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Which of the following regions
of the electromagnetic spectrum have longer wavelengths than visible
light?
1. | FM radio waves | 2. | x-rays | 3. | microwaves | | |
a. | 1 only | b. | 2 only | c. | 3 only | d. | 1 and 2 | e. | 1 and 3 | | |
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2.
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Which of the following regions
of the electromagnetic spectrum has the longest wavelengths? a. | microwave | b. | infrared | c. | x-ray | d. | gamma ray | e. | visible | | |
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3.
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Which of the following colors
of visible light has the longest wavelength? a. | orange | b. | blue | c. | red | d. | green | e. | yellow | | |
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4.
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If an AM radio station
broadcasts at 995 kHz, what is the wavelength of this radiation? a. | 6.59 × 10-28
m | b. | 1.01 ×
10-6 m | c. | 3.32 ×
10-3 m | d. | 301 m | e. | 2.98 × 1014
m | | |
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5.
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If the energy of 1.00 mole of
photons is 441 kJ, what is the wavelength of the light? a. | 271 nm | b. | 451 nm | c. | 680 nm | d. | 732 nm | e. | 891 nm | | |
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6.
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For a hydrogen atom, calculate
the wavelength of the line in the Lyman series that results from the transition n = 4 to
n = 1. The Rydberg constant equals 1.097 ×
107 m-1.
a. | 30.4 nm | b. | 97.2 nm | c. | 114 nm | d. | 121 nm | e. | 182 nm | | |
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7.
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The Schrödinger wave
equation a. | calculates the position and momentum of an electron at any given
time. | b. | can be solved to determine the probability of finding an electron in a
region of space. | c. | proves that energy is equal to mass times
the speed of light squared. | d. | incorrectly predicts circular orbits of
electrons around nuclei. | e. | is used to calculate the velocity of an
electron. | | |
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8.
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Which of the following
statements is INCORRECT? a. | The location and the energy of an electron
in an atom can be simultaneously known with little or no uncertainty. | b. | The energies of an atom's electrons are quantized. | c. | Quantum numbers define the energy states and the orbitals available to an
electron. | d. | The behavior of an atom's electrons can be described by standing
waves. | e. | Electrons have both wave and particle
properties. | | |
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9.
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What type of orbital is
designated n = 4, λ = 3, ml = -3?
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10.
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What is the total number of
orbitals having n = 5 and λ =
1?
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