Question 1

The frequency of the emitted light from a cesium atom is an intensive property.

Accepted Answer

A) True 
 B)False

Question 2

Calculate the wavelength of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level. Recall that for hydrogen En = -2.18 * 10-18 J(1/n2)

Accepted Answer

A)  97.2 nm
B)  82.6 nm
C)  365 nm
D)  0.612 nm
E)  6.8 * 10-18 nm

Question 3

Which one of the following sets of quantum numbers is not possible?

Accepted Answer

The answer of Which one of the following sets of...

Question 4

Write the ground state electron configuration for Ni.

Accepted Answer

The answer of Write the ground state electron configuration for...

Question 5

Which of the following is the ground-state electron configuration of a calcium atom?

Accepted Answer

A)  [Ne]3s2
B)  [Ne]3s23p6
C)  [Ar]4s13d1
D)  [Ar]4s2
E)  [Ar]3d2

Question 6

An FM radio station broadcasts at a frequency of 101.7 MHz.Calculate the wavelength of the broadcast signal in meters.(c = 2.9979 * 108 m/s)

Accepted Answer

The answer of An FM radio station broadcasts at a...

Question 7

Which element has the following ground-state electron configuration? [Kr]5s24d105p2

Accepted Answer

A)  Sn
B)  Sb
C)  Pb
D)  Ge
E)  Te

Question 8

Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 6 to the n = 3 principal energy level. Recall that for hydrogen En = -2.18 * 10-18 J(1/n2) .

Accepted Answer

A)  1.64 * 1015 /s
B)  9.13 * 1013 /s
C)  3.65 * 1014 /s
D)  1.82 * 10-19 /s
E)  2.74 * 1014/s

Question 9

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

Accepted Answer

A)  0, diamagnetic
B)  2, diamagnetic
C)  3, paramagnetic
D)  5, paramagnetic
E)  4, diamagnetic

Question 10

Write the ground state electron configuration for an iodine atom.

Accepted Answer

The answer of Write the ground state electron configuration for...

Question 11

According to de Broglie's equation, the wavelength associated with the motion of a particle increases as the particle mass decreases.

Accepted Answer

A) True 
 B)False

Question 12

What is the total number of electrons possible in the 2p orbitals?

Accepted Answer

The answer of What is the total number of electrons...

Question 13

Complete this sentence: Atoms emit visible and ultraviolet light

Accepted Answer

A)  as electrons jump from lower energy levels to higher levels.
B)  as the atoms condense from a gas to a liquid.
C)  as electrons jump from higher energy levels to lower levels.
D)  as they are heated and the solid melts to form a liquid.
E)  as the electrons move about the atom within an orbit.

Question 14

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?

Accepted Answer

A)  99.7 kJ/mol
B)  1.66 * 10-19 J/mol
C)  2.75 * 10-43 J/mol
D)  7.22 * 1017 kJ/mol
E)  1.20 * 10-6 J/mol

Question 15

The orbital diagram for a ground state carbon atom is

Accepted Answer

The answer of The orbital diagram for a ground state...

Question 16

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 * 102 nm?

Accepted Answer

A)  256 kJ
B)  1.71 * 105 J
C)  4.72 * 10-43 J
D)  12.4 kJ
E)  2.12 * 1042 J

Question 17

Electrons can be used to probe the arrangement of atoms on a solid surface if the wavelength of the electrons is comparable with the spacing between the atoms. Which of the following electron velocities would be appropriate for use in this application if the atoms are separated by 0.320 nm?

Accepted Answer

A)  2.27 * 106 m/s
B)  1.24 * 103 m/s
C)  3.00 * 108 m/s
D)  4.41 * 106 m/s
E)  8.06 * 103 m/s

Question 18

The longest wavelength of light that causes electrons to be ejected from the surface of a copper plate is 243 nm. What is the maximum velocity of the electrons ejected when light of wavelength 200.nm shines on a copper plate?

Accepted Answer

A)  1.48 * 106 m/s
B)  6.22 * 105 m/s
C)  4.67 * 104 m/s
D)  1.97 * 104 m/s
E)  1.34 * 106 m/s

Question 19

An AM radio station broadcasts at a frequency of 1270 kHz.Calculate the wavelength of the broadcast signal in meters.(c = 2.9979 * 108 m/s)

Accepted Answer

The answer of An AM radio station broadcasts at a...

Question 20

Electrons in an orbital with l = 3 are in a/an

Accepted Answer

A)  d orbital.
B)  f orbital.
C)  g orbital.
D)  p orbital.
E)  s orbital.

Exam 7: Quantum Theory and the Electronic Structure of Atoms

Calculate the wavelength of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level. Recall that for hydrogen En = -2.18 * 10-18 J(1/n2)

Correct AnswerverifiedShow Answer

Write the ground state electron configuration for Ni.

Correct AnswerverifiedShow Answer

Electrons in an orbital with l = 3 are in a/an

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is the ground-state electron configuration of a calcium atom?

Correct AnswerverifiedShow Answer

Which one of the following sets of quantum numbers is not possible?

Correct AnswerverifiedShow Answer

Complete this sentence: Atoms emit visible and ultraviolet light

Correct AnswerverifiedShow Answer

An AM radio station broadcasts at a frequency of 1270 kHz.Calculate the wavelength of the broadcast signal in meters.(c = 2.9979 * 108 m/s)

Correct AnswerverifiedShow Answer

An FM radio station broadcasts at a frequency of 101.7 MHz.Calculate the wavelength of the broadcast signal in meters.(c = 2.9979 * 108 m/s)

Correct AnswerverifiedShow Answer

Electrons can be used to probe the arrangement of atoms on a solid surface if the wavelength of the electrons is comparable with the spacing between the atoms. Which of the following electron velocities would be appropriate for use in this application if the atoms are separated by 0.320 nm?

Correct AnswerverifiedShow Answer

The orbital diagram for a ground state carbon atom is

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

According to de Broglie's equation, the wavelength associated with the motion of a particle increases as the particle mass decreases.

Correct AnswerverifiedShow Answer

Write the ground state electron configuration for an iodine atom.

Correct AnswerverifiedShow Answer

Which element has the following ground-state electron configuration? [Kr]5s24d105p2

Correct AnswerverifiedShow Answer

What is the total number of electrons possible in the 2p orbitals?

Correct AnswerverifiedShow Answer

Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 6 to the n = 3 principal energy level. Recall that for hydrogen En = -2.18 * 10-18 J(1/n2) .

Correct AnswerverifiedShow Answer

The longest wavelength of light that causes electrons to be ejected from the surface of a copper plate is 243 nm. What is the maximum velocity of the electrons ejected when light of wavelength 200.nm shines on a copper plate?

Correct AnswerverifiedShow Answer

The frequency of the emitted light from a cesium atom is an intensive property.

Correct AnswerverifiedShow Answer

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 * 102 nm?

Correct AnswerverifiedShow Answer

Calculate the wavelength of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level. Recall that for hydrogen E_n = -2.18 * 10^-18 J(1/n²)

Correct Answer
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A ground-state atom of vanadium has _ unpaired electrons and is ___.

Correct Answer
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An AM radio station broadcasts at a frequency of 1270 kHz.Calculate the wavelength of the broadcast signal in meters.(c = 2.9979 * 10⁸ m/s)

Correct Answer
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An FM radio station broadcasts at a frequency of 101.7 MHz.Calculate the wavelength of the broadcast signal in meters.(c = 2.9979 * 10⁸ m/s)

Correct Answer
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Correct Answer
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Correct Answer
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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?

Correct Answer
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Which element has the following ground-state electron configuration? [Kr]5s²4d¹⁰5p²

Correct Answer
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Correct Answer
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Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 6 to the n = 3 principal energy level. Recall that for hydrogen E_n = -2.18 * 10^-18 J(1/n²) .

Correct Answer
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Correct Answer
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What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 * 10² nm?

Correct Answer
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