Question 1

What is the radius of the smallest electron orbit in a singly-ionized helium atom?

Accepted Answer

A)   1.32 × 10-11 m
B)   2.65 × 10-11 m
C)   5.29 × 10-11 m
D)   1.06 × 10-10 m

Question 2

If the principal quantum number of an electron is n = 5,which one of the following is NOT an allowed magnetic quantum number ml for the electron?

Accepted Answer

A)   0
B)   2
C)   3
D)   4
E)   5

Question 3

If the orbital quantum number is l = 4,which one of the following is a possible value for the principal quantum number n?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   8

Question 4

An atom with 5 electrons is in its ground state.How many electrons are in its outermost shell?

Accepted Answer

The answer of An atom with 5 electrons is in...

Question 5

What is the correct electronic configuration for ground state carbon,which has 6 electrons?

Accepted Answer

A)   1s22s22p2
B)   1s12p1
C)   1s12s22p1
D)   1s12s12p1
E)   1s22s22p4

Question 6

Consider the n = 9 shell.
(a)What is the largest value of the orbital quantum number,l,in this shell?
(b)How many electrons can be placed in this shell?

Accepted Answer

The answer of Consider the n = 9 shell.
(a)What is...

Question 7

A muonic hydrogen atom is a proton orbited by a muon (a particle with the same charge as an electron and 207 times its mass) in which the mass of the muon is significant relative to the mass of the proton.What would be the radius of the smallest muon orbit in a muonic hydrogen atom?

Accepted Answer

A)   1.03 × 10-8 m
B)   1.10 × 10-8 m
C)   2.56 × 10-13 m
D)   2.84 × 10-13 m
E)   5.29 × 10-11 m

Question 8

The only VALID electron state and shell designation among the following is

Accepted Answer

A)   1p, K.
B)   2s, K.
C)   1s, L.
D)   2p, L.
E)   3f, M.

Question 9

What is the wavelength of the Kα line for Mercury?

Accepted Answer

A)   1.94 × 10-11 m
B)   5.38 × 10-12 m
C)   1.85 × 10-11 m
D)   3.02 × 10-12 m

Question 10

How many possible sets of quantum numbers (electron states) are there in the 5f subshell?

Accepted Answer

A)   2
B)   6
C)   8
D)   10
E)   14

Question 11

A three-dimensional potential well has potential U0 = 0 in the region 0 = 0 in the region   ,and   and infinite potential otherwise.The ground state energy of a particle in the well is E0.What is the energy of the first excited state,and what is the degeneracy of that state? A)  2E0, single degeneracy B)  2E0, triple degeneracy C)  3E0, single degeneracy D)  6E0, single degeneracy E)  6E0, triple degeneracy" class="answers-bank-image d-inline" rel="preload" > ,and 0 = 0 in the region   ,and   and infinite potential otherwise.The ground state energy of a particle in the well is E0.What is the energy of the first excited state,and what is the degeneracy of that state? A)  2E0, single degeneracy B)  2E0, triple degeneracy C)  3E0, single degeneracy D)  6E0, single degeneracy E)  6E0, triple degeneracy" class="answers-bank-image d-inline" rel="preload" > and infinite potential otherwise.The ground state energy of a particle in the well is E0.What is the energy of the first excited state,and what is the degeneracy of that state?

Accepted Answer

A)   2E0, single degeneracy
B)   2E0, triple degeneracy
C)   3E0, single degeneracy
D)   6E0, single degeneracy
E)   6E0, triple degeneracy

Question 12

If two electrons in the same atom have the same four quantum numbers,then they must have the same energy.

Accepted Answer

A)   True
B)   False
C)   They cannot both have the same four quantum numbers.

Question 13

The magnitude of the orbital angular momentum L of an electron in a certain atom is equal to 3.464ħ.Which one of the following numbers could be the principal quantum number n of the electron?

Accepted Answer

A)   0
B)   1
C)   2
D)   3
E)   4

Question 14

An electron in a hydrogen atom has orbital quantum number l = 4.How many possible values of the magnetic quantum number ml could it have?

Accepted Answer

A)   4
B)   10
C)   5
D)   9
E)   3

Question 15

An atom in a state with its orbital quantum number l = 1 decays to its ground state (with l = 0) .A photon of wavelength 630.000 nm is emitted in the process.When the same process takes place in the presence of an intense magnetic field,the following change in the spectrum is observed.With the magnetic field present,one of the emitted lines observed now has a wavelength of 630.030 nm.Which of the following wavelengths would you expect to be also present?

Accepted Answer

A)   629.970 nm
B)   630.060 nm
C)   630.090 nm
D)   630.120 nm
E)   629.910 nm

Question 16

An electron in a hydrogen atom has principal quantum number n = 4.How many possible values of the orbital quantum number l could it have?

Accepted Answer

A)   8
B)   9
C)   3
D)   4
E)   10

Question 17

An electron in a hydrogen atom is in the n = 7 shell.How many possible values of the orbital quantum number l could it have?

Accepted Answer

A)   6
B)   7
C)   15
D)   33
E)   98

Question 18

Doubly-ionized lithium is a hydrogen-like ion,in which the nucleus with charge 3e is orbited by a single electron.What wavelength light would be emitted from Li++ as the electron dropped from the n = 4 to the n = 3 orbit?

Accepted Answer

A)   16.9 µm
B)   1.88 µm
C)   470 nm
D)   208 nm

Question 19

For each value of the principal quantum number n,what are the possible values of the electron spin quantum number ms? (There may be more than one correct choice.)

Accepted Answer

A)   0
B)   +1/2
C)   -1/2
D)   +3/2
E)   -3/2

Question 20

What is the minimum speed needed by a ground-state hydrogen atom for its kinetic energy to be enough to ionize the atom in a collision? (1 eV = 1.60 × 10-19 J, mH≈ mproton =1.67 x 10-27 kg)

Accepted Answer

A)   44.2 km/s
B)   21.7 km/s
C)   66.5 km/s
D)   113 km/s
E)   51.0 km/s

Exam 41: Atomic Structure

The only VALID electron state and shell designation among the following is

Correct Answer
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An electron in a hydrogen atom has principal quantum number n = 4.How many possible values of the orbital quantum number l could it have?

Correct Answer
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If the orbital quantum number is l = 4,which one of the following is a possible value for the principal quantum number n?

Correct Answer
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What is the wavelength of the K_α line for Mercury?

Correct Answer
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What is the minimum speed needed by a ground-state hydrogen atom for its kinetic energy to be enough to ionize the atom in a collision? (1 eV = 1.60 × 10^-19 J, m_H≈ m_proton =1.67 x 10^-27kg)

Correct Answer
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How many possible sets of quantum numbers (electron states) are there in the 5f subshell?

Correct Answer
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If the principal quantum number of an electron is n = 5,which one of the following is NOT an allowed magnetic quantum number m_l for the electron?

Correct Answer
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If two electrons in the same atom have the same four quantum numbers,then they must have the same energy.

Correct Answer
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What is the correct electronic configuration for ground state carbon,which has 6 electrons?

Correct Answer
verified

A muonic hydrogen atom is a proton orbited by a muon (a particle with the same charge as an electron and 207 times its mass) in which the mass of the muon is significant relative to the mass of the proton.What would be the radius of the smallest muon orbit in a muonic hydrogen atom?

Correct Answer
verified

The magnitude of the orbital angular momentum L of an electron in a certain atom is equal to 3.464ħ.Which one of the following numbers could be the principal quantum number n of the electron?

Correct Answer
verified

An electron in a hydrogen atom is in the n = 7 shell.How many possible values of the orbital quantum number l could it have?

Correct Answer
verified

A three-dimensional potential well has potential U₀= 0 in the region ,and and infinite potential otherwise.The ground state energy of a particle in the well is E₀.What is the energy of the first excited state,and what is the degeneracy of that state?

Correct Answer
verified

An atom with 5 electrons is in its ground state.How many electrons are in its outermost shell?

Correct Answer
verified

An electron in a hydrogen atom has orbital quantum number l = 4.How many possible values of the magnetic quantum number m_l could it have?

Correct Answer
verified

Consider the n = 9 shell. (a)What is the largest value of the orbital quantum number,l,in this shell? (b)How many electrons can be placed in this shell?

Correct Answer
verified

Correct Answer
verified

What is the radius of the smallest electron orbit in a singly-ionized helium atom?

Correct Answer
verified

Doubly-ionized lithium is a hydrogen-like ion,in which the nucleus with charge 3e is orbited by a single electron.What wavelength light would be emitted from Li⁺⁺ as the electron dropped from the n = 4 to the n = 3 orbit?

Correct Answer
verified

For each value of the principal quantum number n,what are the possible values of the electron spin quantum number m_s? (There may be more than one correct choice.)

Correct Answer
verified

Exam 41: Atomic Structure

The only VALID electron state and shell designation among the following is

Correct AnswerverifiedShow Answer

An electron in a hydrogen atom has principal quantum number n = 4.How many possible values of the orbital quantum number l could it have?

Correct AnswerverifiedShow Answer

If the orbital quantum number is l = 4,which one of the following is a possible value for the principal quantum number n?

Correct AnswerverifiedShow Answer

What is the wavelength of the Kα line for Mercury?

Correct AnswerverifiedShow Answer

What is the minimum speed needed by a ground-state hydrogen atom for its kinetic energy to be enough to ionize the atom in a collision? (1 eV = 1.60 × 10-19 J, mH≈ mproton =1.67 x 10-27 kg)

Correct AnswerverifiedShow Answer

How many possible sets of quantum numbers (electron states) are there in the 5f subshell?

Correct AnswerverifiedShow Answer

If the principal quantum number of an electron is n = 5,which one of the following is NOT an allowed magnetic quantum number ml for the electron?

Correct AnswerverifiedShow Answer

If two electrons in the same atom have the same four quantum numbers,then they must have the same energy.

Correct AnswerverifiedShow Answer

What is the correct electronic configuration for ground state carbon,which has 6 electrons?

Correct AnswerverifiedShow Answer

A muonic hydrogen atom is a proton orbited by a muon (a particle with the same charge as an electron and 207 times its mass) in which the mass of the muon is significant relative to the mass of the proton.What would be the radius of the smallest muon orbit in a muonic hydrogen atom?

Correct AnswerverifiedShow Answer

The magnitude of the orbital angular momentum L of an electron in a certain atom is equal to 3.464ħ.Which one of the following numbers could be the principal quantum number n of the electron?

Correct AnswerverifiedShow Answer

An electron in a hydrogen atom is in the n = 7 shell.How many possible values of the orbital quantum number l could it have?

Correct AnswerverifiedShow Answer

A three-dimensional potential well has potential U0 = 0 in the region ,and and infinite potential otherwise.The ground state energy of a particle in the well is E0.What is the energy of the first excited state,and what is the degeneracy of that state?

Correct AnswerverifiedShow Answer

An atom with 5 electrons is in its ground state.How many electrons are in its outermost shell?

Correct AnswerverifiedShow Answer

An electron in a hydrogen atom has orbital quantum number l = 4.How many possible values of the magnetic quantum number ml could it have?

Correct AnswerverifiedShow Answer

Consider the n = 9 shell. (a)What is the largest value of the orbital quantum number,l,in this shell? (b)How many electrons can be placed in this shell?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

What is the radius of the smallest electron orbit in a singly-ionized helium atom?

Correct AnswerverifiedShow Answer

Doubly-ionized lithium is a hydrogen-like ion,in which the nucleus with charge 3e is orbited by a single electron.What wavelength light would be emitted from Li++ as the electron dropped from the n = 4 to the n = 3 orbit?

Correct AnswerverifiedShow Answer

For each value of the principal quantum number n,what are the possible values of the electron spin quantum number ms? (There may be more than one correct choice.)

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

What is the wavelength of the K_α line for Mercury?

Correct Answer
verified

What is the minimum speed needed by a ground-state hydrogen atom for its kinetic energy to be enough to ionize the atom in a collision? (1 eV = 1.60 × 10^-19 J, m_H≈ m_proton =1.67 x 10^-27kg)

Correct Answer
verified

Correct Answer
verified

If the principal quantum number of an electron is n = 5,which one of the following is NOT an allowed magnetic quantum number m_l for the electron?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

A three-dimensional potential well has potential U₀= 0 in the region ,and and infinite potential otherwise.The ground state energy of a particle in the well is E₀.What is the energy of the first excited state,and what is the degeneracy of that state?

Correct Answer
verified

Correct Answer
verified

An electron in a hydrogen atom has orbital quantum number l = 4.How many possible values of the magnetic quantum number m_l could it have?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Doubly-ionized lithium is a hydrogen-like ion,in which the nucleus with charge 3e is orbited by a single electron.What wavelength light would be emitted from Li⁺⁺ as the electron dropped from the n = 4 to the n = 3 orbit?

Correct Answer
verified

For each value of the principal quantum number n,what are the possible values of the electron spin quantum number m_s? (There may be more than one correct choice.)

Correct Answer
verified