Question 1

Which of the following orbital boundary surfaces is a representation of a  orbital?

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) A) and D)
G) C) and E)

Question 2

A ________,designated by the Greek symbol ψ,describes the wave behavior of an electron in an atom.

Accepted Answer

The answer of A ________,designated by the Greek symbol ψ,describes...

Question 3

Which of the following sets of quantum numbers refers to a 4d orbital?

Accepted Answer

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

Question 4

What is the wavelength of a photon having a frequency of 54.1 THz? (1 THz = 1015 Hz)

Accepted Answer

A)   ​0.180 nm
B)   3.59 × 10-23 nm
C)   1.08 × 10-14 nm
D)   5.55 nm
E)   5.55 × 1015 nmF) A) and B)
G) A) and E)

Question 5

For a proton (mass = 1.673 × 10-27 kg) moving with a velocity of 2.83 × 104 m/s,what is the de Broglie wavelength of the proton (in pm) ?

Accepted Answer

A)   0.356 pm
B)   3.56 pm
C)   14.0 pm
D)   7.15 pm
E)   28.5 pmF) C) and D)
G) A) and B)

Question 6

What is the energy of a photon of electromagnetic radiation with a frequency of  Hz?

Accepted Answer

A)   ​  J
B)   ​  J
C)   ​  J
D)    J
E)    JF) A) and C)
G) A) and E)

Question 7

According to the Bohr model of the hydrogen atom,the energy necessary to excite an electron from energy level n = 4 to n = 5 is _____ the energy necessary to excite an electron from energy level n = 6 to n = 7.

Accepted Answer

A)   less than
B)   greater than
C)   equal to
D)   either equal to or greater than
E)   either less than or equal toF) A) and E)
G) All of the above

Question 8

Which type of experiment demonstrates that light has the properties of a particle?

Accepted Answer

A)   nuclear fission
B)   electron diffraction
C)   light emission from atomic gases
D)   mass spectroscopy
E)   photoelectric effectF) A) and E)
G) C) and E)

Question 9

The electron in a hydrogen atom,originally in level n = 10,undergoes a transition to a lower level by emitting a photon of wavelength 1739 nm.What is the final level of the electron? (c = 3.00 × 108 m/s,h = 6.626 × 10-34 J·s,RH = 2.179 × 10-18 J)

Accepted Answer

A)   ​4
B)   ​5
C)   ​10
D)   ​20
E)   1F) B) and C)
G) A) and D)

Question 10

Which of the following is a representation of a 3dxy orbital?

Accepted Answer

A)   xy orbital? 
A)     
B)     
C)     
D)     
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B)   xy orbital? 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
C)   xy orbital? 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
D)   xy orbital? 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
E)   xy orbital? 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >F) A) and E)
G) A) and B) A

Question 11

For which of the following transitions would a hydrogen atom absorb a photon with the longest wavelength?

Accepted Answer

A)   n = 1 to n = 2
B)   n = 4 to n = 6
C)   n = 5 to n = 4
D)   n = 7 to n = 6
E)   n = 6 to n = 7F) D) and E)
G) A) and B)

Question 12

Which of the following statements is INCORRECT?

Accepted Answer

A)   It is not possible to know the exact location of an electron and its exact energy simultaneously.
B)   The energies of an atom's electrons are quantized.
C)   Quantum numbers define the energy states and the orbitals available to an electron.
D)   The behavior of an atom's electrons can be described by circular orbits around a nucleus.
E)   Electrons have both wave and particle properties.F) C) and E)
G) A) and E)

Question 13

A 4d orbital has ?

Accepted Answer

A)   3 planar nodes and 3 spherical nodes.
B)   1 planar node and 1 spherical node.
C)   2 planar nodes and 1 spherical node.
D)   2 planar nodes and 4 spherical nodes.
E)   4 planar nodes and 2 spherical nodes.F) C) and E)
G) C) and D)

Question 14

Which of the following colors of visible light has the longest wavelength?

Accepted Answer

A)   green
B)   orange
C)   red
D)   yellow
E)   blueF) A) and E)
G) A) and D)

Question 15

What is the total number of subshells found in the n = 7 shell?

Accepted Answer

A)   7
B)   49
C)   6
D)   8
E)   9F) A) and B)
G) C) and E)

Question 16

The difference in energy between adjacent energy levels in an atom _____ as n increases.

Accepted Answer

decrease.

Question 17

Which of the following orbital boundary surfaces represent d-orbitals?

Accepted Answer

A)   1 only
B)   3 only
C)   2 only
D)   1 and 2
E)   1 and 4F) B) and E)
G) A) and B)

Question 18

What is the frequency of gamma ray radiation that has a wavelength of 11.4 pm?

Accepted Answer

A)   3.80 × 10-20 s-1
B)   1.74 × 10-14 s-1
C)   2.63 × 107 s-1
D)   3.42 × 109 s-1
E)   2.63 × 1019 s-1F) A) and B)
G) A) and C)

Question 19

What is the binding energy of an electron in a photosensitive metal (in kJ/mol) if the longest wavelength of light that can eject electrons from the metal is 299.0 nm?

Accepted Answer

A)   279 kJ/mol
B)   400 kJ/mol
C)   792 kJ/mol
D)   2.50 × 1019 kJ/mol
E)   4.00 × 10-20 kJ/molF) A) and B)
G) A) and C) B

Question 20

What is the value of the spin quantum number for an electron in a 3d orbital?

Accepted Answer

A)   3
B)   2
C)   either  or 
D)   
E)   F) D) and E)
G) All of the above

Exam 7: The Structure of Atoms

Which of the following orbital boundary surfaces is a representation of a orbital?

Correct AnswerverifiedShow Answer

A ________,designated by the Greek symbol ψ,describes the wave behavior of an electron in an atom.

Correct AnswerverifiedShow Answer

Which of the following sets of quantum numbers refers to a 4d orbital?

Correct AnswerverifiedShow Answer

What is the wavelength of a photon having a frequency of 54.1 THz? (1 THz = 1015 Hz)

Correct AnswerverifiedShow Answer

For a proton (mass = 1.673 × 10-27 kg) moving with a velocity of 2.83 × 104 m/s,what is the de Broglie wavelength of the proton (in pm) ?

Correct AnswerverifiedShow Answer

What is the energy of a photon of electromagnetic radiation with a frequency of Hz?

Correct AnswerverifiedShow Answer

According to the Bohr model of the hydrogen atom,the energy necessary to excite an electron from energy level n = 4 to n = 5 is _____ the energy necessary to excite an electron from energy level n = 6 to n = 7.

Correct AnswerverifiedShow Answer

Which type of experiment demonstrates that light has the properties of a particle?

Correct AnswerverifiedShow Answer

The electron in a hydrogen atom,originally in level n = 10,undergoes a transition to a lower level by emitting a photon of wavelength 1739 nm.What is the final level of the electron? (c = 3.00 × 108 m/s,h = 6.626 × 10-34 J·s,RH = 2.179 × 10-18 J)

Correct AnswerverifiedShow Answer

Which of the following is a representation of a 3dxy orbital?

Correct AnswerverifiedA

For which of the following transitions would a hydrogen atom absorb a photon with the longest wavelength?

Correct AnswerverifiedShow Answer

Which of the following statements is INCORRECT?

Correct AnswerverifiedShow Answer

A 4d orbital has ?

Correct AnswerverifiedShow Answer

Which of the following colors of visible light has the longest wavelength?

Correct AnswerverifiedShow Answer

What is the total number of subshells found in the n = 7 shell?

Correct AnswerverifiedShow Answer

The difference in energy between adjacent energy levels in an atom _____ as n increases.

Correct Answerverifieddecrease.

Which of the following orbital boundary surfaces represent d-orbitals?

Correct AnswerverifiedShow Answer

What is the frequency of gamma ray radiation that has a wavelength of 11.4 pm?

Correct AnswerverifiedShow Answer

What is the binding energy of an electron in a photosensitive metal (in kJ/mol) if the longest wavelength of light that can eject electrons from the metal is 299.0 nm?

Correct AnswerverifiedB

What is the value of the spin quantum number for an electron in a 3d orbital?

Correct AnswerverifiedShow Answer

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For a proton (mass = 1.673 × 10^-27 kg) moving with a velocity of 2.83 × 10⁴ m/s,what is the de Broglie wavelength of the proton (in pm) ?

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The electron in a hydrogen atom,originally in level n = 10,undergoes a transition to a lower level by emitting a photon of wavelength 1739 nm.What is the final level of the electron? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J·s,R_H = 2.179 × 10^-18 J)

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Which of the following is a representation of a 3d_xy orbital?

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A

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decrease.

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B

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