Question 1

To which of the following values of n does the shortest wavelength in the Balmer series correspond?

Accepted Answer

A)  3
B)  5
C)  7
D)  1
E)  ∞ (very large) F) A) and D)
G) B) and E) E

Question 2

The orbital angular momentum quantum number can take which of the following values for any given value of the principal quantum number, n?

Accepted Answer

A)  ℓ = 0, 1, 2, . . .
B)  ℓ = 0, 1, 2, . . . , n
C)  ℓ = 0, 1, 2, . . . , (n - 1) 
D)  ℓ = 1, 2, 3, 4, . . .
E)  ℓ = 1, 2, 3, 4, . . ., (n + 1) F) A) and E)
G) A) and D)

Question 3

In a hydrogen atom, the electron makes a transition from the n = 8 to the n = 3 state. The wavelength of the emitted photon is closest to which one of the following values? (c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ∙ s)

Accepted Answer

A)  9.57 × 10-7 m
B)  1.13 × 10-6 m
C)  3.12 × 10-7 m
D)  4.52 × 10-6 m
E)  6.34 × 10-7 mF) A) and B)
G) A) and C)

Question 4

The Balmer series is formed by electron transitions in hydrogen 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 = 2 shell.
E)  are between the n = 1 and n = 3 shells.F) None of the above
G) D) and E)

Question 5

Calculate the orbital Bohr radius of the  n=2n = 2n=2  excited state in a hydrogen atom.  (r1=0.0529 nm) \left( r _ { 1 } = 0.0529 \mathrm {~nm} \right) (r1​=0.0529 nm)

Accepted Answer

A)  0.212 nm
B)  0.106 nm
C)  0.170 nm
D)  0.244 nm E) All of the above
F) None of the above

Question 6

What is the energy required to remove the electron from a hydrogen atom in the n = 11 state?

Accepted Answer

A)  0.112 eV
B)  1.24 eV
C)  13.5 eV
D)  12.4 eV
E)  0.141 eVF) A) and E)
G) All of the above

Question 7

What is the atomic number of a neutral atom that has an electron configuration of 1s2 2s2 2p6 3s2 3p2?

Accepted Answer

A)  5
B)  11
C)  14
D)  20E) A) and C)
F) B) and D)

Question 8

An atom with atomic number 6 is in its ground state. How many electrons are in its outermost shell?

Accepted Answer

The answer of An atom with atomic number 6 is...

Question 9

What value of n corresponds to a wavelength of 91.7 nm in the Lyman series?

Accepted Answer

A)  1
B)  3
C)  5
D)  9
E)  13F) A) and E)
G) B) and E)

Question 10

Hydrogen atoms can emit four spectral lines with visible colors from red to violet. These four visible lines emitted by hydrogen atoms are produced by electrons

Accepted Answer

A)  that start in the n = 2 level.
B)  that end up in the n = 2 level.
C)  that end up in the n = 3 level.
D)  that end up in the ground state.
E)  that start in the ground state.F) A) and D)
G) B) and C)

Question 11

What is the wavelength in the Balmer series for n = 15?

Accepted Answer

A)  277.1 nm
B)  371.1 nm
C)  188.6 nm
D)  656 nm
E)  754.2 nmF) B) and D)
G) B) and C) B

Question 12

For the ground state of the hydrogen atom, which of the following numbers represents the correct value of the orbital angular momentum quantum number?

Accepted Answer

A)  -1
B)  1
C)  0
D)  2
E)  -2F) A) and B)
G) All of the above

Question 13

What is the greatest magnitude of the orbital angular momentum L that you can find in a state with  n=6?n = 6 ?n=6?

Accepted Answer

A)  5.48  h2π\frac { h } { 2 \pi }2πh​ 
B)  5.92  h2π\frac { h } { 2 \pi }2πh​ 
C)  6  h2π\frac { h } { 2 \pi }2πh​ 
D)  6.48  h2π\frac { h } { 2 \pi }2πh​E) C) and D)
F) B) and D)

Question 14

Which one of the following is the correct electronic configuration for carbon, which has 6 electrons?

Accepted Answer

A)  1s2 2s2 2p2
B)  1s1 2p1
C)  1s1 2s2 2p1
D)  1s1 2s1 2p1
E)  1s2 2s2 2p4F) A) and E)
G) B) and D)

Question 15

Consider the Bohr model for the hydrogen atom in its second excited state.
(a)Determine the binding energy (eV)of the electron.
(b)What is the radius of the electron orbit, given that r1 = 0.0529 nm?
(c)How far is it from the next higher excited orbit?

Accepted Answer

(a)1.51 eV...

Question 16

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)  9F) C) and E)
G) All of the above

Question 17

What is the longest wavelength in the Lyman Series?

Accepted Answer

A)  45.60 nm
B)  91.20 nm
C)  121.5 nm
D)  240.1 nm
E)  365 nmF) A) and B)
G) None of the above

Question 18

If a hydrogen atom in the ground state absorbs a photon of energy 12.09 eV, to which state will the electron make a transition?

Accepted Answer

A)  n = 2
B)  n = 3
C)  n = 4
D)  n = 5E) All of the above
F) A) and B)

Question 19

How many 2d electron states can an atom have?

Accepted Answer

A)  0
B)  4
C)  6
D)  8
E)  10F) A) and B)
G) A) and C) A

Question 20

In a hydrogen atom, an electron with n = 7 can exist in how many different quantum states?

Accepted Answer

A)  6
B)  7
C)  15
D)  98E) A) and B)
F) A) and C)

Exam 29: Atoms and Molecules

To which of the following values of n does the shortest wavelength in the Balmer series correspond?

Correct AnswerverifiedE

The orbital angular momentum quantum number can take which of the following values for any given value of the principal quantum number, n?

Correct AnswerverifiedShow Answer

In a hydrogen atom, the electron makes a transition from the n = 8 to the n = 3 state. The wavelength of the emitted photon is closest to which one of the following values? (c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ∙ s)

Correct AnswerverifiedShow Answer

The Balmer series is formed by electron transitions in hydrogen that

Correct AnswerverifiedShow Answer

Calculate the orbital Bohr radius of the n=2n = 2n=2 excited state in a hydrogen atom. (r1=0.0529 nm) \left( r _ { 1 } = 0.0529 \mathrm {~nm} \right) (r1​=0.0529 nm)

Correct AnswerverifiedShow Answer

What is the energy required to remove the electron from a hydrogen atom in the n = 11 state?

Correct AnswerverifiedShow Answer

What is the atomic number of a neutral atom that has an electron configuration of 1s2 2s2 2p6 3s2 3p2?

Correct AnswerverifiedShow Answer

An atom with atomic number 6 is in its ground state. How many electrons are in its outermost shell?

Correct AnswerverifiedShow Answer

What value of n corresponds to a wavelength of 91.7 nm in the Lyman series?

Correct AnswerverifiedShow Answer

Hydrogen atoms can emit four spectral lines with visible colors from red to violet. These four visible lines emitted by hydrogen atoms are produced by electrons

Correct AnswerverifiedShow Answer

What is the wavelength in the Balmer series for n = 15?

Correct AnswerverifiedB

For the ground state of the hydrogen atom, which of the following numbers represents the correct value of the orbital angular momentum quantum number?

Correct AnswerverifiedShow Answer

What is the greatest magnitude of the orbital angular momentum L that you can find in a state with n=6?n = 6 ?n=6?

Correct AnswerverifiedShow Answer

Which one of the following is the correct electronic configuration for carbon, which has 6 electrons?

Correct AnswerverifiedShow Answer

Consider the Bohr model for the hydrogen atom in its second excited state. (a)Determine the binding energy (eV)of the electron. (b)What is the radius of the electron orbit, given that r1 = 0.0529 nm? (c)How far is it from the next higher excited orbit?

Correct Answerverified(a)1.51 eV...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

What is the longest wavelength in the Lyman Series?

Correct AnswerverifiedShow Answer

If a hydrogen atom in the ground state absorbs a photon of energy 12.09 eV, to which state will the electron make a transition?

Correct AnswerverifiedShow Answer

How many 2d electron states can an atom have?

Correct AnswerverifiedA

In a hydrogen atom, an electron with n = 7 can exist in how many different quantum states?

Correct AnswerverifiedShow Answer

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E

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In a hydrogen atom, the electron makes a transition from the n = 8 to the n = 3 state. The wavelength of the emitted photon is closest to which one of the following values? (c = 3.00 × 10⁸ m/s, 1 eV = 1.60 × 10^-19J, h = 6.626 × 10^-34 J ∙ s)

Correct Answer
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Calculate the orbital Bohr radius of the $n = 2$ excited state in a hydrogen atom. $\left( r _ { 1 } = 0.0529 \mathrm {~nm} \right)$

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What is the atomic number of a neutral atom that has an electron configuration of 1s²2s²2p⁶3s²3p²?

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B

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What is the greatest magnitude of the orbital angular momentum L that you can find in a state with $n = 6 ?$

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Consider the Bohr model for the hydrogen atom in its second excited state. (a)Determine the binding energy (eV)of the electron. (b)What is the radius of the electron orbit, given that r₁ = 0.0529 nm? (c)How far is it from the next higher excited orbit?

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(a)1.51 eV...
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A

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