Question 1

Describe how a neon light works.

Accepted Answer

A neon sign contains glass tub...

Question 2

Place the following types of electromagnetic radiation in order of decreasing energy. ultraviolet light radio waves microwaves

Accepted Answer

A)  radio waves > microwaves > ultraviolet light
B)  ultraviolet light > microwaves > radio waves
C)  radio waves > ultraviolet light > microwaves
D)  ultraviolet light > radio waves > microwaves
E)  microwaves > radio waves > ultraviolet light

Question 3

Calculate the wavelength of light absorbed by a hydrogen atom when an electron undergoes an n = 2 to n = 4 transmission.

Accepted Answer

A)  433.9 nm
B)  410.0 nm
C)  1093 nm
D)  486.0 nm
E)  3295 nm

Question 4

What is the maximum number of s orbitals that are possible?

Accepted Answer

A)  1
B)  3
C)  7
D)  5
E)  9

Question 5

Choose the orbital diagram that represents the ground state of N.

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 6

Calculate the orbital for the hydrogen atom that contains an electron with an energy of -4.45 × 10-20 J.

Accepted Answer

A)  n = 5
B)  n = 4
C)  n = 1
D)  n = 3
E)  n = 7

Question 7

An electron initially in the n = 5 orbital of a hydrogen atom emits a photon with a wavelength of 1284 nm. Calculate the final orbital, nf.

Accepted Answer

A)  1
B)  3
C)  2
D)  6
E)  4

Question 8

Which of the following colours of electromagnetic radiation has the shortest wavelength?

Accepted Answer

A)  blue
B)  violet
C)  orange
D)  green
E)  yellow

Question 9

Calculate the wavelength of a baseball (m = 155 g) moving at 32.5 m s-1.

Accepted Answer

A)  7.60 × 10-36 m
B)  1.32 × 10-34 m
C)  2.15 × 10-32 m
D)  2.68 × 10-34 m
E)  3.57 × 10-32 m

Question 10

Which of the following statements is TRUE?

Accepted Answer

A)  The principal quantum number (n) describes the shape of an orbital.
B)  The angular momentum quantum number (l) describes the the size and energy associated with an orbital.
C)  The magnetic quantum number (ml) describes the orientation of the orbital.
D)  An orbital is the path that an electron follows during its movement in an atom.
E)  All of the above are true.

Question 11

Determine the end (final) value of n in a hydrogen atom transition if the electron starts in n = 2 and the atom absorbs a photon of light with a frequency of 4.57 × 1014 Hz.

Accepted Answer

A)  3
B)  1
C)  4
D)  6
E)  7

Question 12

Calculate the frequency of light associated with the transition from n = 2 to n = 3 in the hydrogen atom.

Accepted Answer

A)  2.19 × 1014 s-1
B)  5.59 × 1014 s-1
C)  4.57 × 1014 s-1
D)  1.79 × 1014 s-1
E)  3.28 × 1014 s-1

Question 13

The complete electron configuration of argon, element 18, is ________.

Accepted Answer

A)  1s22s22p63s23p6
B)  1s22s22p103s23p2
C)  1s42s42p63s4 
D)  1s42s42p10
E)  1s62s62p23s4

Question 14

Calculate the energy of the green light emitted, per photon, by a mercury lamp with a frequency of 5.49 × 1014 Hz.

Accepted Answer

A)  2.75 × 10-19 J
B)  3.64 × 10-19 J
C)  5.46 × 10-19 J
D)  1.83 × 10-19 J
E)  4.68 × 10-19 J

Question 15

It is possible to determine the ionization energy for hydrogen using the Bohr equation. Calculate the ionization energy for an atom of hydrogen, making the assumption that ionization is the transition from n = 1 to n = ∞.

Accepted Answer

A)  -2.18 × 10-18 J
B)  +2 .18 × 10-18 J
C)  +4.59 × 10-18 J
D)  -4.59 × 10-18 J
E)  +4.36 × 10-18 J

Question 16

Determine the end (final) value of n in a hydrogen atom transition if the electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 × 10-18 J.

Accepted Answer

A)  3
B)  4
C)  2
D)  5
E)  6

Question 17

How many of the following species are diamagnetic? Cs Zr2⁺ Al3⁺ Hg2⁺

Accepted Answer

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

Question 18

It is possible to determine the ionization energy for hydrogen using the Bohr equation. Calculate the ionization energy (in kJ) for a mole of hydrogen atoms, making the assumption that ionization is the transition from n = 1 to n = ∞.

Accepted Answer

A)  7.62 × 103 kJ
B)  2.76 × 103 kJ
C)  1.31 × 103 kJ
D)  3.62 × 103 kJ
E)  5.33 × 103 kJ

Question 19

An electron ends in orbital n = 4 after a hydrogen atom emits a photon with a wavelength of 2165 nm. Calculate the initial orbital, ni.

Accepted Answer

A)  6
B)  7
C)  1
D)  3
E)  2

Question 20

How many different values of l are possible in the third principal level?

Accepted Answer

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

Exam 7: The Quantum-Mechanical Model of the Atom

Calculate the frequency of light associated with the transition from n = 2 to n = 3 in the hydrogen atom.

Correct AnswerverifiedShow Answer

What is the maximum number of s orbitals that are possible?

Correct AnswerverifiedShow Answer

Determine the end (final) value of n in a hydrogen atom transition if the electron starts in n = 2 and the atom absorbs a photon of light with a frequency of 4.57 × 1014 Hz.

Correct AnswerverifiedShow Answer

Calculate the orbital for the hydrogen atom that contains an electron with an energy of -4.45 × 10-20 J.

Correct AnswerverifiedShow Answer

Place the following types of electromagnetic radiation in order of decreasing energy. ultraviolet light radio waves microwaves

Correct AnswerverifiedShow Answer

Describe how a neon light works.

Correct AnswerverifiedA neon sign contains glass tub...View AnswerShow Answer

Calculate the wavelength of light absorbed by a hydrogen atom when an electron undergoes an n = 2 to n = 4 transmission.

Correct AnswerverifiedShow Answer

The complete electron configuration of argon, element 18, is ________.

Correct AnswerverifiedShow Answer

An electron initially in the n = 5 orbital of a hydrogen atom emits a photon with a wavelength of 1284 nm. Calculate the final orbital, nf.

Correct AnswerverifiedShow Answer

Which of the following colours of electromagnetic radiation has the shortest wavelength?

Correct AnswerverifiedShow Answer

Which of the following statements is TRUE?

Correct AnswerverifiedShow Answer

Calculate the energy of the green light emitted, per photon, by a mercury lamp with a frequency of 5.49 × 1014 Hz.

Correct AnswerverifiedShow Answer

How many of the following species are diamagnetic? Cs Zr2⁺ Al3⁺ Hg2⁺

Correct AnswerverifiedShow Answer

How many different values of l are possible in the third principal level?

Correct AnswerverifiedShow Answer

Choose the orbital diagram that represents the ground state of N.

Correct AnswerverifiedShow Answer

It is possible to determine the ionization energy for hydrogen using the Bohr equation. Calculate the ionization energy (in kJ) for a mole of hydrogen atoms, making the assumption that ionization is the transition from n = 1 to n = ∞.

Correct AnswerverifiedShow Answer

Determine the end (final) value of n in a hydrogen atom transition if the electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 × 10-18 J.

Correct AnswerverifiedShow Answer

It is possible to determine the ionization energy for hydrogen using the Bohr equation. Calculate the ionization energy for an atom of hydrogen, making the assumption that ionization is the transition from n = 1 to n = ∞.

Correct AnswerverifiedShow Answer

An electron ends in orbital n = 4 after a hydrogen atom emits a photon with a wavelength of 2165 nm. Calculate the initial orbital, ni.

Correct AnswerverifiedShow Answer

Calculate the wavelength of a baseball (m = 155 g) moving at 32.5 m s-1.

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Determine the end (final) value of n in a hydrogen atom transition if the electron starts in n = 2 and the atom absorbs a photon of light with a frequency of 4.57 × 10¹⁴ Hz.

Correct Answer
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Calculate the orbital for the hydrogen atom that contains an electron with an energy of -4.45 × 10^-20 J.

Correct Answer
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Correct Answer
verified

Correct Answer
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A neon sign contains glass tub...
View Answer

Correct Answer
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Correct Answer
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An electron initially in the n = 5 orbital of a hydrogen atom emits a photon with a wavelength of 1284 nm. Calculate the final orbital, n_f.

Correct Answer
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Correct Answer
verified

Correct Answer
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Calculate the energy of the green light emitted, per photon, by a mercury lamp with a frequency of 5.49 × 10¹⁴ Hz.

Correct Answer
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How many of the following species are diamagnetic? Cs Zr²⁺ Al³⁺ Hg²⁺

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Determine the end (final) value of n in a hydrogen atom transition if the electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 × 10^-18 J.

Correct Answer
verified

Correct Answer
verified

An electron ends in orbital n = 4 after a hydrogen atom emits a photon with a wavelength of 2165 nm. Calculate the initial orbital, n_i.

Correct Answer
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Calculate the wavelength of a baseball (m = 155 g) moving at 32.5 m s^-1.

Correct Answer
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