Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
104. Calculate the energy of a photon of light with a wavelength of 360 nm.
105. What is the wavelength (nm) for a photon of light with an energy of 3.20 x 10–19
J/photon?
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
106. Which of the following scientists made this contribution to quantum:
“It is impossible to know simultaneously both the momentum and the position of a particle
with certainty.”
107. What is the total number of electrons possible in the 2p orbitals?
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
108. What is the total number of electrons possible in the 6s orbital?
109. Select True or False: An electron gains energy in the transition from a 4d subshell to a 5s
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
110. Select True or False: An electron gains energy in the transition from a 6s subshell to a 5d
subshell.
111. Select True or False: An electron loses energy in the transition from a 4f subshell to a 6s
subshell.
112. What is the ground-state electron configuration for chlorine?
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
113. If one electron is added to the outer shell of chlorine, it would have the same electron
configuration as what element?
114. What is the electron configuration of calcium?
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
115. If we take away two electrons from the outer shell of calcium, it would have the same
electron configuration as what element?
116. The colors of the visible spectrum are blue, green, orange, red, violet, and yellow. Of
these colors, _______ has the most energy.
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
117. The colors of the visible spectrum are blue, green, orange, red, violet, and yellow. Of
these colors, ______ has the least energy.
118. The colors of the visible spectrum are blue, green, orange, red, violet, and yellow. Of
these colors, _______ has the longest wavelength.
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
119. The colors of the visible spectrum are blue, green, orange, red, violet, and yellow. Of
these colors, ______ has the shortest wavelength.
120. What is the wavelength, in meters, of an alpha particle with a kinetic energy of 8.0 10–
13 J? (Mass of an alpha particle = 4.00150 amu; 1 amu = 1.67 10–27 kg)
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
121. The scattering of helium atoms by a solid can be used to gain information about the
lattice of atoms, provided the wavelength of the helium atoms is comparable to the
dimensions of the lattice. What is the wavelength, in picometers, of a helium-4 atom with a
kinetic energy of 0.10 eV? (Mass of 4He = 4.0026 amu; 1 amu = 1.67 10–24 g; 1 eV = 1.602
10–19 J; h = 6.626 10–34 Js)
122. What is the wavelength of a ball bearing with a mass of 10.0 g, and a velocity of 10.0
cm/s?
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
123. The bonds of oxygen molecules are broken by sunlight. The minimum energy required to
break the oxygen-oxygen bond is 495 kJ/mol. What is the wavelength of sunlight that can
cause this bond breakage?
124. A photovoltaic cell converts light into electrical energy. Suppose a certain photovoltaic
cell is only 63.5% efficient, in other words, that 63.5% of the light energy is ultimately
recovered. If the energy output of this cell is used to heat water, how many 520 nm photons
must be absorbed by the photovoltaic cell in order to heat 10.0 g of water from 20.0C to
30.0?
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
125. Select True or False: There is nothing wrong with the following set of quantum numbers:
126. Select True or False: The following set of quantum numbers is correct.
n = 3, l = 3, ml = 0, ms = +1/2
127. Select True or False: An electron in a 3p orbital could have a value of 2 for its angular
momentum quantum number (l).
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
128. Select True or False: A neon atom in its ground state will be diamagnetic.
129. Select True or False: Each shell (principal energy level) of quantum number n contains n
subshells.
130. Select True or False: For all atoms of the same element, the 2s orbital is larger than the
1s orbital.
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
131. Select True or False: According to de Broglie’s equation, the wavelength associated with
the motion of a particle increases as the particle mass decreases.
132. Select True or False: The frequency of the emitted light from a cesium atom is an
intensive property.
133. The quantum numbers, n = 4, l = 1, ml = 1, ms = +1/2, represent an electron in a ______
subshell.
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms
Topic: Quantum Theory and Atomic Structure
134. The quantum numbers, n = 3, l = 1, ml = 0, ms = +1/2, represent an electron in a ____
subshell.
135. The quantum numbers, n = 4, l = 3, ml = 2, ms = +1/2, represent an electron in a ___
subshell