Question 1

The following combination of quantum numbers is not allowed. Correct this set of quantum numbers by changing only one quantum number, and write in an appropriate corrected value. n = 2, l = 2, ml = 2; Corrected: ________ = _____

Accepted Answer

Question 2

Which of the following is a correct set of quantum numbers for an electron in a 3d orbital?

Accepted Answer

A)   n = 3, l = 0, ml = -1
B)   n = 3, l = 1, ml = +3
C)   n = 3, l = 2, ml = 3
D)   n = 3, l = 3, ml = +2
E)   n = 3, l = 2, ml = -2F) B) and D)
G) None of the above

Question 3

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm? (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s; NA = 6.022 × 1023 moles-1)

Accepted Answer

A)   6.46 × 10-16 J
B)   6.46 × 10-25 J
C)   2.46 × 10-4 J
D)   12.4 kJ
E)   246 kJF) All of the above
G) C) and E)

Question 4

The orbital diagram for a ground-state nitrogen atom is

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) C) and D)
G) B) and C)

Question 5

A 6.0-gram champagne cork is shot out of an opened champagne bottle and traveled at a speed of 65 km/hour. Calculate the de Broglie wavelength (in meters)  of the cork.

Accepted Answer

A)   6.1 × 10-33 m
B)   1.7 × 10-36 m
C)   6.1 × 10-36 m
D)   1.7 × 10-33 m
E)   5.5 × 10-20 mF) A) and B)
G) B) and D)

Question 6

The ________ quantum number is the quantum number which describes the orientation of the orbital in space.

Accepted Answer

A)   principal
B)   angular momentum
C)   magnetic
D)   spinE) B) and D)
F) C) and D)

Question 7

If n = 2 then l = 0, -1, and 1.

Accepted Answer

A) True 
 B)False

Question 8

How many electrons are in the 4p orbitals of selenium?

Accepted Answer

A)   0
B)   2
C)   4
D)   5
E)   6F) A) and E)
G) A) and C)

Question 9

What type of configuration specifies the arrangement of electrons in the orbitals of an atom?

Accepted Answer

A)   Heisenberg configuration
B)   Nuclear configuration
C)   Atomic configuration
D)   Proton configuration
E)   Electron configurationF) B) and D)
G) D) and E)

Question 10

Use the Rydberg equation to calculate the frequency of a photon absorbed when the hydrogen atom undergoes a transition from n1 = 2 to n2 = 4. (R = 1.096776 × 107 m-1; c = 3.00 × 108 m/s)

Accepted Answer

A)   2.06 × 106 s-1
B)   2.74 × 106 s-1
C)   6.17 × 1014 s-1 
D)   8.23 × 1014 s-1
E)   > 1015 s-1F) C) and D)
G) All of the above

Question 11

Electrons will not pair in degenerate orbitals if an empty orbital is available and, according to Hund's rule, the degenerate orbitals must all contain one electron before any of them can contain two electrons.

Accepted Answer

A) True 
 B)False

Question 12

What is the wavelength of radiation that has a frequency of 6.912 × 1014 s-1? (c = 3.00 × 108 m/s)

Accepted Answer

A)   1.447 × 10-15 nm
B)   4.337 × 102 nm
C)   2.304 × 106 nm
D)   2.074 × 1023 nm
E)   4.337 × 10-7 nmF) A) and D)
G) A) and C)

Question 13

Calculate the energy, in joules, required to excite a hydrogen atom by causing an electronic transition from the n = 1 to the n = 4 principal energy level. Recall that the energy levels of the H atom are given by En = -2.18 × 10-18 J(1/n2) .

Accepted Answer

A)   2.07 × 10-29 J
B)   2.19 × 105 J
C)   2.04 × 10-18 J
D)   3.27 × 10-17 J
E)   2.25 × 10-18 JF) A) and B)
G) B) and C)

Question 14

What element is represented by the electron configuration 1s22s22p63s23p64s23d104p65s14d10?

Accepted Answer

A)   Ag
B)   Rb
C)   Cd
D)   Sr
E)   CuF) A) and E)
G) A) and B)

Question 15

What is the electron configuration for tungsten?

Accepted Answer

A)   1s22s22p63s23p64s23d104p65s24d105p66s24f145d6
B)   1s22s22p63s23p64s23d104p65s24d105p66s14f145d5
C)   1s22s22p63s23p64s23d104p65s24d105p66s24f145d4
D)   1s22s22p63s23p64s23d104p65s24d105p66s24f145d7
E)   1s22s22p63s23p54s23d104p65s24d105p66s24f145d7F) A) and E)
G) A) and D)

Exam 6: Quantum Theory and the Electronic Structure of Atoms

A 6.0-gram champagne cork is shot out of an opened champagne bottle and traveled at a speed of 65 km/hour. Calculate the de Broglie wavelength (in meters) of the cork.

Correct Answer
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If n = 2 then l = 0, -1, and 1.

Correct Answer
verified

What type of configuration specifies the arrangement of electrons in the orbitals of an atom?

Correct Answer
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What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm? (c = 3.00 × 10⁸m/s; h = 6.63 × 10^-34 J • s; N_A = 6.022 × 10²³ moles^-1)

Correct Answer
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What is the electron configuration for tungsten?

Correct Answer
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How many electrons are in the 4p orbitals of selenium?

Correct Answer
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Which of the following is a correct set of quantum numbers for an electron in a 3d orbital?

Correct Answer
verified

The ________ quantum number is the quantum number which describes the orientation of the orbital in space.

Correct Answer
verified

What is the wavelength of radiation that has a frequency of 6.912 × 10¹⁴ s^-1? (c = 3.00 × 10⁸m/s)

Correct Answer
verified

Calculate the energy, in joules, required to excite a hydrogen atom by causing an electronic transition from the n = 1 to the n = 4 principal energy level. Recall that the energy levels of the H atom are given by E_n = -2.18 × 10^-18 J(1/n²) .

Correct Answer
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The following combination of quantum numbers is not allowed. Correct this set of quantum numbers by changing only one quantum number, and write in an appropriate corrected value. n = 2, l = 2, m_l = 2; Corrected: ____ = _

Correct Answer
verified

The orbital diagram for a ground-state nitrogen atom is

Correct Answer
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Use the Rydberg equation to calculate the frequency of a photon absorbed when the hydrogen atom undergoes a transition from n₁ = 2 to n₂ = 4. (R = 1.096776 × 10⁷ m^-1; c = 3.00 × 10⁸m/s)

Correct Answer
verified

Electrons will not pair in degenerate orbitals if an empty orbital is available and, according to Hund's rule, the degenerate orbitals must all contain one electron before any of them can contain two electrons.

Correct Answer
verified

What element is represented by the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s¹4d¹⁰?

Correct Answer
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Exam 6: Quantum Theory and the Electronic Structure of Atoms

A 6.0-gram champagne cork is shot out of an opened champagne bottle and traveled at a speed of 65 km/hour. Calculate the de Broglie wavelength (in meters) of the cork.

Correct AnswerverifiedShow Answer

If n = 2 then l = 0, -1, and 1.

Correct AnswerverifiedShow Answer

What type of configuration specifies the arrangement of electrons in the orbitals of an atom?

Correct AnswerverifiedShow Answer

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm? (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s; NA = 6.022 × 1023 moles-1)

Correct AnswerverifiedShow Answer

What is the electron configuration for tungsten?

Correct AnswerverifiedShow Answer

How many electrons are in the 4p orbitals of selenium?

Correct AnswerverifiedShow Answer

Which of the following is a correct set of quantum numbers for an electron in a 3d orbital?

Correct AnswerverifiedShow Answer

The ________ quantum number is the quantum number which describes the orientation of the orbital in space.

Correct AnswerverifiedShow Answer

What is the wavelength of radiation that has a frequency of 6.912 × 1014 s-1? (c = 3.00 × 108 m/s)

Correct AnswerverifiedShow Answer

Calculate the energy, in joules, required to excite a hydrogen atom by causing an electronic transition from the n = 1 to the n = 4 principal energy level. Recall that the energy levels of the H atom are given by En = -2.18 × 10-18 J(1/n2) .

Correct AnswerverifiedShow Answer

The following combination of quantum numbers is not allowed. Correct this set of quantum numbers by changing only one quantum number, and write in an appropriate corrected value. n = 2, l = 2, ml = 2; Corrected: ________ = _____

Correct AnswerverifiedShow Answer

The orbital diagram for a ground-state nitrogen atom is

Correct AnswerverifiedShow Answer

Use the Rydberg equation to calculate the frequency of a photon absorbed when the hydrogen atom undergoes a transition from n1 = 2 to n2 = 4. (R = 1.096776 × 107 m-1; c = 3.00 × 108 m/s)

Correct AnswerverifiedShow Answer

Electrons will not pair in degenerate orbitals if an empty orbital is available and, according to Hund's rule, the degenerate orbitals must all contain one electron before any of them can contain two electrons.

Correct AnswerverifiedShow Answer

What element is represented by the electron configuration 1s22s22p63s23p64s23d104p65s14d10?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
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What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm? (c = 3.00 × 10⁸m/s; h = 6.63 × 10^-34 J • s; N_A = 6.022 × 10²³ moles^-1)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

What is the wavelength of radiation that has a frequency of 6.912 × 10¹⁴ s^-1? (c = 3.00 × 10⁸m/s)

Correct Answer
verified

Calculate the energy, in joules, required to excite a hydrogen atom by causing an electronic transition from the n = 1 to the n = 4 principal energy level. Recall that the energy levels of the H atom are given by E_n = -2.18 × 10^-18 J(1/n²) .

Correct Answer
verified

The following combination of quantum numbers is not allowed. Correct this set of quantum numbers by changing only one quantum number, and write in an appropriate corrected value. n = 2, l = 2, m_l = 2; Corrected: ____ = _

Correct Answer
verified

Correct Answer
verified

Use the Rydberg equation to calculate the frequency of a photon absorbed when the hydrogen atom undergoes a transition from n₁ = 2 to n₂ = 4. (R = 1.096776 × 10⁷ m^-1; c = 3.00 × 10⁸m/s)

Correct Answer
verified

Correct Answer
verified

What element is represented by the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s¹4d¹⁰?

Correct Answer
verified