Exam 7: Quantum Theory and the Electronic Structure of Atoms

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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 \circ C to 30.0 \circ

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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,

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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

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A ground-state atom of manganese has ___ unpaired electrons and is _____.

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What is the total number of electrons possible in the 6s orbital

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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

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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

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Which of the following is the electron configuration of an excited state of a copper atom

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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

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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 Which ground-state atom has an electron configuration described by the following orbital diagram

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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

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An electron gains energy in the transition from a 6s subshell to a 5d subshell.

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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) \rarr 2Cl(g) is 242.8 kJ/mol, what is the longest wavelength of light that will produce free chlorine atoms in solution

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Which element has the following ground-state electron configuration [Ar]4s23d104p5

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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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The orbital diagram for a ground-state nitrogen atom is The orbital diagram for a ground-state nitrogen atom is

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