Exam 7: Quantum Theory and the Electronic Structure of Atoms
Exam 1: Chemistry: The Study of Change175 Questions
Exam 2: Atoms Molecules and Ions156 Questions
Exam 3: Mass Relationships in Chemical Reactions194 Questions
Exam 4: Reactions in Aqueous Solutions192 Questions
Exam 5: Gases130 Questions
Exam 6: Thermochemistry119 Questions
Exam 7: Quantum Theory and the Electronic Structure of Atoms135 Questions
Exam 8: Periodic Relationships Among the Elements144 Questions
Exam 9: Chemical Bonding I: Basic Concepts136 Questions
Exam 10: Chemical Bonding II: Molecular Geometry and Hybridization of Atomic146 Questions
Exam 11: Intermolecular Forces and Liquids and Solids149 Questions
Exam 12: Physical Properties of Solutions122 Questions
Exam 13: Chemical Kinetics131 Questions
Exam 14: Chemical Equilibrium119 Questions
Exam 15: Acids and Bases178 Questions
Exam 16: Acid-Base Equilibria and Solubility Equilibria145 Questions
Exam 17: Entropy Free Energy and Equilibrium128 Questions
Exam 18: Electrochemistry154 Questions
Exam 19: Nuclear Chemistry128 Questions
Exam 20: Chemistry in the Atmosphere50 Questions
Exam 21: Metallurgy and the Chemistry of Metals63 Questions
Exam 22: Nonmetallic Elements and Their Compounds52 Questions
Exam 23: Transition Metals Chemistry and Coordination Compounds92 Questions
Exam 24: Organic Chemistry66 Questions
Exam 25: Synthetic and Natural Organic Polymers46 Questions
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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 20.0 C to 30.0
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Which of the following atoms is paramagnetic both in its ground state and in all of its excited states
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A proton is roughly 1800 times more massive than an electron. If a proton and an electron are traveling at the same speed,
(Multiple Choice)
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Breaking the oxygen-oxygen bond in hydrogen peroxide requires 210 kJ/mol. What is the longest wavelength of light that can cause this bond to be broken
(Multiple Choice)
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A ground-state atom of manganese has ___ unpaired electrons and is _____.
(Multiple Choice)
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What is the total number of electrons possible in the 6s orbital
(Multiple Choice)
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A possible set of quantum numbers for the last electron added to complete an atom of gallium (Ga) in its ground state is \nobreakspace\nobreakspace\nobreakspace\nobreakspace\nobreakspace n l A. 4 0 0 -1/2 B. 3 1 0 -1/2 C. 4 1 0 +1/2 D. 3 1 1 +1/2 E. 4 2 1 +1/2
(Short Answer)
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What is the maximum number of electrons in an atom that can have the following set of quantum numbers
N = 4 l = 3 ml = -2 ms = +1/2
(Multiple Choice)
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Which of the following is the electron configuration of an excited state of a copper atom
(Multiple Choice)
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What is the maximum number of electrons in an atom that can have the following quantum numbers
N = 3 l = 2
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A possible set of quantum numbers to describe an electron in a 5p subshell is
(Multiple Choice)
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What is the binding energy (in J/mol or kJ/mol) of an electron in a metal whose threshold frequency for photoelectrons is 2.50 * 1014 /s
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Transition metal elements have atoms or ions with partially filled
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Which ground-state atom has an electron configuration described by the following orbital diagram 

(Multiple Choice)
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A possible set of quantum numbers for the last electron added to complete an atom of germanium (Ge) in its ground state is \nobreakspace\nobreakspace\nobreakspace\nobreakspace\nobreakspace n l A. 4 0 0 +1/2 B. 3 0 +1 -1/2 C. 4 1 -1 +1/2 D. 3 1 +1 -1/2 E. 4 2 +2 -1/2
(Multiple Choice)
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An electron gains energy in the transition from a 6s subshell to a 5d subshell.
(True/False)
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A common way of initiating certain chemical reactions with light involves the generation of free halogen atoms in solution. If DH for the reaction Cl2(g) 2Cl(g) is 242.8 kJ/mol, what is the longest wavelength of light that will produce free chlorine atoms in solution
(Multiple Choice)
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Which element has the following ground-state electron configuration
[Ar]4s23d104p5
(Multiple Choice)
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Calculate the wavelength of a neutron that has a velocity of 250 cm/s. (The mass of a neutron = 1.675 * 10-24 g)
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