Question 1

The electron spin quantum number can have values of

Accepted Answer

A) -1/2,-1,0,+1,+1/2. 
B) -1/2,-1,+1,+1/2. 
C) -1/2,0,+1/2. 
D) -1/2,+1/2. 
E) only +1/2. 
A) -1/2,-1,0,+1,+1/2. 
B) -1/2,-1,+1,+1/2. 
C) -1/2,0,+1/2. 
D) -1/2,+1/2. 
E) only +1/2. D

Question 2

According to the quantum mechanical model of the hydrogen atom,if the principal quantum number is n,how many different orbital angular momentum quantum numbers are permitted?

Accepted Answer

A) n/2 
B) n 
C) 2n 
D) 3n 
E) 4n 
A) n/2 
B) n 
C) 2n 
D) 3n 
E) 4n B

Question 3

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

Accepted Answer

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

Question 4

The wavelength of the emitted photon if an electron in the hydrogen atom makes a transition from the n = 2 state to the ground state is closest to which of the following values? (c = 3.0 × 108 m/s,h = 6.626 × 10-34 J ∙ s,1 eV = 1.60 × 10-19 J)

Accepted Answer

A) 122 nm 
B) 203 nm 
C) 243 nm 
D) 389 nm 
E) 411 nm 
A) 122 nm 
B) 203 nm 
C) 243 nm 
D) 389 nm 
E) 411 nm

Question 5

When an electron jumps from an orbit where n = 4 to one where n = 2

Accepted Answer

A) a photon is emitted. 
B) a photon is absorbed. 
C) two photons are emitted. 
D) two photons are absorbed. 
E) None of the given answers are correct. 
A) a photon is emitted. 
B) a photon is absorbed. 
C) two photons are emitted. 
D) two photons are absorbed. 
E) None of the given answers are correct.

Question 6

The magnetic quantum number m1 can have any integer value ranging from

Accepted Answer

A) -n to +n. 
B) -ℓ to +ℓ. 
C) 0 to n. 
D) 0 to ℓ. 
E) 0 to (n-1) 
A) -n to +n. 
B) -ℓ to +ℓ. 
C) 0 to n. 
D) 0 to ℓ. 
E) 0 to (n-1)

Question 7

In making a transition from state n = 1 to state n = 2,the hydrogen atom must

Accepted Answer

A) absorb a photon of energy 10.2 eV. 
B) emit a photon of energy 10.2 eV. 
C) absorb a photon of energy 13.58 eV. 
D) emit a photon of energy 13.58 eV. 
A) absorb a photon of energy 10.2 eV. 
B) emit a photon of energy 10.2 eV. 
C) absorb a photon of energy 13.58 eV. 
D) emit a photon of energy 13.58 eV.

Question 8

What is the value of n in the Balmer series for which the wavelength is 410.2 nm?

Accepted Answer

A) 4 
B) 5 
C) 6 
D) 7 
E) 9 
A) 4 
B) 5 
C) 6 
D) 7 
E) 9

Question 9

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

Accepted Answer

A) 1s,K (n = 1)shell. 
B) 2s,L (n = 2)shell. 
C) 2d,L (n = 2)shell. 
D) 3s,M (n = 3)shell. 
E) 3d,M (n = 3)shell. 
A) 1s,K (n = 1)shell. 
B) 2s,L (n = 2)shell. 
C) 2d,L (n = 2)shell. 
D) 3s,M (n = 3)shell. 
E) 3d,M (n = 3)shell.

Question 10

What is the wavelength of the photon emitted when an electron in a hydrogen atom which is in the initial state n = 8 jumps to the final state n = 2? (c = 3.00 × 108 m/s,h = 6.626 × 10-34 J ∙ s,1 eV = 1.60 × 10-19 J)

Accepted Answer

A) 205 nm 
B) 104 nm 
C) 389 nm 
D) 486 nm 
E) 610 nm 
A) 205 nm 
B) 104 nm 
C) 389 nm 
D) 486 nm 
E) 610 nm

Question 11

The figure shows part of the energy level diagram of a certain atom.The energy spacing between levels 1 and 2 is twice that between 2 and 3.If an electron makes a transition from level 3 to level 2,the radiation of wavelength λ is emitted.What possible radiation wavelengths might be produced by other transitions between the three energy levels?

Accepted Answer

A) both λ/2 and λ/3 
B) only λ/2 
C) both 2λ and 3λ 
D) only 2λ 
A) both λ/2 and λ/3 
B) only λ/2 
C) both 2λ and 3λ 
D) only 2λ

Question 12

The shortest wavelength of a photon that can be emitted by a hydrogen atom,for which the initial state is  
Is closest to which one of the following values?

Accepted Answer

A) 92 nm 
B) 82 nm 
C) 72 nm 
D) 62 nm 
E) 52 nm 
A) 92 nm 
B) 82 nm 
C) 72 nm 
D) 62 nm 
E) 52 nm

Question 13

The elements in the periodic table that have completely filled shells or subshells are referred to as

Accepted Answer

A) noble gases. 
B) halogens. 
C) alkali metals. 
D) transition elements. 
A) noble gases. 
B) halogens. 
C) alkali metals. 
D) transition elements.

Question 14

The longest wavelength photon that can be emitted by a hydrogen atom,for which the final state is  
Is closest to which one of the following values? (c = 3.0 × 108 m/s,

Accepted Answer

A) 39,000 nm 
B) 22,000 nm 
C) 7,400 nm 
D) 16,000 nm 
E) 28,000 nm 
A) 39,000 nm 
B) 22,000 nm 
C) 7,400 nm 
D) 16,000 nm 
E) 28,000 nm

Question 15

What is the electron configuration for Li,which has 3 electrons?

Accepted Answer

A) 1s3 
B) 1s1 2s2 
C) 1s2 2s1 
D) 1s2 1p1 
E) 1s1 2s1 3s1 
A) 1s3 
B) 1s1 2s2 
C) 1s2 2s1 
D) 1s2 1p1 
E) 1s1 2s1 3s1

Question 16

What is the greatest magnitude of the orbital angular momentum L that you can find in a state with

Accepted Answer

A) 5.48   
B) 5.92   
C) 6   
D) 6.48   
A) 5.48   
B) 5.92   
C) 6   
D) 6.48

Question 17

Which of the following statements are true for the Bohr model of the atom? (There could be more than one correct choice. )

Accepted Answer

A) The spacing between all the electron shells is the same. 
B) The energy difference between all the electron shells is the same. 
C) As we look at higher and higher electron shells,they get closer and closer together,but the difference in energy between them gets greater and greater. 
D) As we look at higher and higher electron shells,they get farther and farther apart,but the difference in energy between them gets smaller and smaller. 
E) There is no general pattern in the spacing of the shells or their energy differences. 
A) The spacing between all the electron shells is the same. 
B) The energy difference between all the electron shells is the same. 
C) As we look at higher and higher electron shells,they get closer and closer together,but the difference in energy between them gets greater and greater. 
D) As we look at higher and higher electron shells,they get farther and farther apart,but the difference in energy between them gets smaller and smaller. 
E) There is no general pattern in the spacing of the shells or their energy differences.

Question 18

The Paschen series is formed by electron transitions that

Accepted Answer

A) end on the n = 1 shell. 
B) begin on the n = 1 shell. 
C) end on the n = 2 shell. 
D) begin on the n = 3 shell. 
E) end on the n = 3 shell. 
A) end on the n = 1 shell. 
B) begin on the n = 1 shell. 
C) end on the n = 2 shell. 
D) begin on the n = 3 shell. 
E) end on the n = 3 shell.

Question 19

In a hydrogen atom,a given electron has ℓ = 7.How many possible values can m1 have?

Accepted Answer

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

Question 20

A hydrogen atom is in the 6h state.How many electrons are allowed in this state?

Accepted Answer

A) 22 
B) 18 
C) 14 
D) 10 
E) 6 
A) 22 
B) 18 
C) 14 
D) 10 
E) 6

Exam 31: Atomic Physics

The electron spin quantum number can have values of

According to the quantum mechanical model of the hydrogen atom,if the principal quantum number is n,how many different orbital angular momentum quantum numbers are permitted?

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

The wavelength of the emitted photon if an electron in the hydrogen atom makes a transition from the n = 2 state to the ground state is closest to which of the following values? (c = 3.0 × 108 m/s,h = 6.626 × 10-34 J ∙ s,1 eV = 1.60 × 10-19 J)

When an electron jumps from an orbit where n = 4 to one where n = 2

The magnetic quantum number m1 can have any integer value ranging from

In making a transition from state n = 1 to state n = 2,the hydrogen atom must

What is the value of n in the Balmer series for which the wavelength is 410.2 nm?

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

What is the wavelength of the photon emitted when an electron in a hydrogen atom which is in the initial state n = 8 jumps to the final state n = 2? (c = 3.00 × 108 m/s,h = 6.626 × 10-34 J ∙ s,1 eV = 1.60 × 10-19 J)

The shortest wavelength of a photon that can be emitted by a hydrogen atom,for which the initial state is Is closest to which one of the following values?

The elements in the periodic table that have completely filled shells or subshells are referred to as

The longest wavelength photon that can be emitted by a hydrogen atom,for which the final state is Is closest to which one of the following values? (c = 3.0 × 108 m/s,

What is the electron configuration for Li,which has 3 electrons?

What is the greatest magnitude of the orbital angular momentum L that you can find in a state with

Which of the following statements are true for the Bohr model of the atom? (There could be more than one correct choice. )

The Paschen series is formed by electron transitions that

In a hydrogen atom,a given electron has ℓ = 7.How many possible values can m1 have?

A hydrogen atom is in the 6h state.How many electrons are allowed in this state?

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The wavelength of the emitted photon if an electron in the hydrogen atom makes a transition from the n = 2 state to the ground state is closest to which of the following values? (c = 3.0 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s,1 eV = 1.60 × 10^-19J)

The magnetic quantum number m₁ can have any integer value ranging from

What is the wavelength of the photon emitted when an electron in a hydrogen atom which is in the initial state n= 8 jumps to the final state n = 2? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s,1 eV = 1.60 × 10^-19J)

The longest wavelength photon that can be emitted by a hydrogen atom,for which the final state is Is closest to which one of the following values? (c = 3.0 × 10⁸ m/s,

In a hydrogen atom,a given electron has ℓ = 7.How many possible values can m₁ have?