Question 1

A mole of yellow photons of wavelength 527 nm has ________ kJ of energy.

Accepted Answer

A) 165 
B) 227 
C) 4.56 × 10-46 
D) 6.05 × 10-3 
E) 2.74 × 10-19 
A) 165 
B) 227 
C) 4.56 × 10-46 
D) 6.05 × 10-3 
E) 2.74 × 10-19

Question 2

Which one of the following is the correct electron configuration for a ground-state nitrogen atom?

Accepted Answer

A)    
B)    
C)    
D)    
E) None of the above is correct. 
A)    
B)    
C)    
D)    
E) None of the above is correct.

Question 3

The angular momentum quantum number for the outermost electrons in a manganese atom in the ground state is ________.

Accepted Answer

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

Question 4

The principal quantum number of the first d subshell is ________.

Accepted Answer

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

Question 5

An electron cannot have the quantum numbers n = ________, l = ________, ml = ________.

Accepted Answer

A) 6, 1, 0 
B) 3, 2, 3 
C) 3, 2, -2 
D) 1, 0, 0 
E) 3, 2, 1 
A) 6, 1, 0 
B) 3, 2, 3 
C) 3, 2, -2 
D) 1, 0, 0 
E) 3, 2, 1

Question 6

Using Bohr's equation for the energy levels of the electron in the hydrogen atom, determine the energy (J)of an electron in the n = 4 level.

Accepted Answer

A) -1.36 × 10-19 
B) -5.45 × 10-19 
C) -7.34 × 1018 
D) -1.84 × 10-29 
E) +1.84 × 10-29 
A) -1.36 × 10-19 
B) -5.45 × 10-19 
C) -7.34 × 1018 
D) -1.84 × 10-29 
E) +1.84 × 10-29

Question 7

Electromagnetic radiation with a wavelength of 425 nm appears as violet light to the human eye. The energy of one photon of this light is ________ J.

Accepted Answer

A) 8.45 × 10-32 
B) 4.68 × 10-28 
C) 4.68 × 10-19 
D) 8.45 × 10-23 
E) 2.14 × 1018 
A) 8.45 × 10-32 
B) 4.68 × 10-28 
C) 4.68 × 10-19 
D) 8.45 × 10-23 
E) 2.14 × 1018

Question 8

The n = 1 shell contains ________ p orbitals. All the other shells contain ________ p orbitals.

Accepted Answer

A) 3, 6 
B) 0, 3 
C) 6, 2 
D) 3, 3 
E) 0, 6 
A) 3, 6 
B) 0, 3 
C) 6, 2 
D) 3, 3 
E) 0, 6

Question 9

The wavelength of light that has a frequency of 1.66 × 109 s-1 is ________ m.

Accepted Answer

A) 0.181 
B) 5.53 
C) 2.00 × 10-9 
D) 5.53 × 108 
E) none of the above 
A) 0.181 
B) 5.53 
C) 2.00 × 10-9 
D) 5.53 × 108 
E) none of the above

Question 10

Which one of the following orbitals can hold two electrons?

Accepted Answer

A) 2px 
B) 3s 
C) 4dxy 
D) all of the above 
E) none of the above 
A) 2px 
B) 3s 
C) 4dxy 
D) all of the above 
E) none of the above

Question 11

Which quantum number determines the energy of an electron in a hydrogen atom?

Accepted Answer

A) n 
B) E 
C) ml 
D) l 
E) n and l 
A) n 
B) E 
C) ml 
D) l 
E) n and l

Question 12

Which quantum numbers must be the same for the orbitals that they designate to be degenerate in a many-electron system?

Accepted Answer

A) n, l, and ml 
B) n only 
C) n, l, ml, and ms 
D) ms only 
E) n and l only 
A) n, l, and ml 
B) n only 
C) n, l, ml, and ms 
D) ms only 
E) n and l only

Question 13

The wavelength of light that has a frequency of 1.20 × 1013 s-1 is ________ m.

Accepted Answer

A) 25.0 
B) 2.50 × 10-5 
C) 0.0400 
D) 12.0 
E) 2.5 
A) 25.0 
B) 2.50 × 10-5 
C) 0.0400 
D) 12.0 
E) 2.5

Question 14

The de Broglie wavelength of an electron is 8.7 × 10-11 m. The mass of an electron is 9.1 × 10-31 kg. The velocity of this electron is ________ m/s.

Accepted Answer

A) 8.4 × 103 
B) 1.2 × 10-7 
C) 6.9 × 10-5 
D) 8.4 × 106 
E) 8.4 × 10-3 
A) 8.4 × 103 
B) 1.2 × 10-7 
C) 6.9 × 10-5 
D) 8.4 × 106 
E) 8.4 × 10-3

Question 15

Which electron configuration represents a violation of Hund's rule for an atom in its ground state?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 16

Which of the following is not a valid set of four quantum numbers? (n, l, ml, ms)

Accepted Answer

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

Question 17

Electromagnetic radiation with a wavelength of 640 nm appears as orange light to the human eye. The frequency of this light is ________ s-1.

Accepted Answer

A) 4.688 × 1014 
B) 4.688 × 105 
C) 1.920 × 102 
D) 1.920 × 1011 
E) 2.133 × 10-15 
A) 4.688 × 1014 
B) 4.688 × 105 
C) 1.920 × 102 
D) 1.920 × 1011 
E) 2.133 × 10-15

Question 18

What is the de Broglie wavelength (m)of a 25-g object moving at a speed of 5.0 m/s?

Accepted Answer

A) 1.9 × 1032 m 
B) 5.3 × 10-33 m 
C) 6.6 × 10-36 m 
D) 3.32 × 10-36 m 
E) 3.02 × 1045 m 
A) 1.9 × 1032 m 
B) 5.3 × 10-33 m 
C) 6.6 × 10-36 m 
D) 3.32 × 10-36 m 
E) 3.02 × 1045 m

Question 19

How many quantum numbers are necessary to designate a particular electron in an atom?

Accepted Answer

A) 3 
B) 4 
C) 2 
D) 1 
E) 5 
A) 3 
B) 4 
C) 2 
D) 1 
E) 5

Question 20

Elements in group ________ have a np6 electron configuration in the outer shell.

Accepted Answer

A) 4A 
B) 6A 
C) 7A 
D) 8A 
E) 5A 
A) 4A 
B) 6A 
C) 7A 
D) 8A 
E) 5A

Exam 6: Electronic Structure of Atoms

A mole of yellow photons of wavelength 527 nm has ________ kJ of energy.

Which one of the following is the correct electron configuration for a ground-state nitrogen atom?

The angular momentum quantum number for the outermost electrons in a manganese atom in the ground state is ________.

The principal quantum number of the first d subshell is ________.

An electron cannot have the quantum numbers n = ________, l = ________, ml = ________.

Using Bohr's equation for the energy levels of the electron in the hydrogen atom, determine the energy (J)of an electron in the n = 4 level.

Electromagnetic radiation with a wavelength of 425 nm appears as violet light to the human eye. The energy of one photon of this light is ________ J.

The n = 1 shell contains ________ p orbitals. All the other shells contain ________ p orbitals.

The wavelength of light that has a frequency of 1.66 × 109 s-1 is ________ m.

Which one of the following orbitals can hold two electrons?

Which quantum number determines the energy of an electron in a hydrogen atom?

Which quantum numbers must be the same for the orbitals that they designate to be degenerate in a many-electron system?

The wavelength of light that has a frequency of 1.20 × 1013 s-1 is ________ m.

The de Broglie wavelength of an electron is 8.7 × 10-11 m. The mass of an electron is 9.1 × 10-31 kg. The velocity of this electron is ________ m/s.

Which electron configuration represents a violation of Hund's rule for an atom in its ground state?

Which of the following is not a valid set of four quantum numbers? (n, l, ml, ms)

Electromagnetic radiation with a wavelength of 640 nm appears as orange light to the human eye. The frequency of this light is ________ s-1.

What is the de Broglie wavelength (m)of a 25-g object moving at a speed of 5.0 m/s?

How many quantum numbers are necessary to designate a particular electron in an atom?

Elements in group ________ have a np6 electron configuration in the outer shell.

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Thermochemistry

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

An electron cannot have the quantum numbers n = , l = , m_l = ________.

The n = 1 shell contains p orbitals. All the other shells contain p orbitals.

The wavelength of light that has a frequency of 1.66 × 10⁹ s^-1is ________ m.

The wavelength of light that has a frequency of 1.20 × 10¹³ s^-1 is ________ m.

The de Broglie wavelength of an electron is 8.7 × 10^-11 m. The mass of an electron is 9.1 × 10^-31 kg. The velocity of this electron is ________ m/s.

Which of the following is not a valid set of four quantum numbers? (n, l, m_l, m_s)

Electromagnetic radiation with a wavelength of 640 nm appears as orange light to the human eye. The frequency of this light is ________ s^-1.

Elements in group ________ have a np⁶ electron configuration in the outer shell.