Question 1

The correct ground-state electron configuration for molybdenum is __________.

Accepted Answer

A) [Kr]5s14d10 
B) [Kr]5s24d4 
C) [Kr]5s14d5 
D) [Kr]5s24d5 
E) [Kr]5s24d9 
A) [Kr]5s14d10 
B) [Kr]5s24d4 
C) [Kr]5s14d5 
D) [Kr]5s24d5 
E) [Kr]5s24d9

Question 2

Which two elements have the same ground-state electron configuration?

Accepted Answer

A) Pd and Pt 
B) Cu and Ag 
C) Fe and Cu 
D) Cl and Ar 
E) No two elements have the same ground-state electron configuration. 
A) Pd and Pt 
B) Cu and Ag 
C) Fe and Cu 
D) Cl and Ar 
E) No two elements have the same ground-state electron configuration.

Question 3

The wavelength of a photon that has an energy of 6.33 × 10-18 J is __________ m.

Accepted Answer

A) 3.79 × 10-7 
B) 3.10 × 10-8 
C) 2.38 × 1023 
D) 4.21 × 10-24 
E) 9.55 × 1015 
A) 3.79 × 10-7 
B) 3.10 × 10-8 
C) 2.38 × 1023 
D) 4.21 × 10-24 
E) 9.55 × 1015

Question 4

The ground-state electron configuration of the element __________ is [Kr]5s14d5.

Accepted Answer

A) Nb 
B) Mo 
C) Cr 
D) Mn 
E) Tc 
A) Nb 
B) Mo 
C) Cr 
D) Mn 
E) Tc

Question 5

A radio station broadcasts at 105.2 MHz. The wavelength of the signal is __________ m.

Accepted Answer

A) 3.10 
B) 2.85 
C) 2.90 
D) 3.02 
E) 3.84 
A) 3.10 
B) 2.85 
C) 2.90 
D) 3.02 
E) 3.84

Question 6

It takes 261 kJ/mol to eject electrons from a certain metal surface. What is the longest wavelength of light (nm)that can be used to eject electrons from the surface of this metal via the photoelectric effect?

Accepted Answer

A) 458 
B) 233 
C) 165 
D) 725 
E) 552 
A) 458 
B) 233 
C) 165 
D) 725 
E) 552

Question 7

The electron configuration of a ground-state Ag atom is __________.

Accepted Answer

A) [Ar]4d24d9 
B) [Kr]5s14d10 
C) [Kr]5s23d9 
D) [Ar]4s14d10 
E) [Kr]5s24d10 
A) [Ar]4d24d9 
B) [Kr]5s14d10 
C) [Kr]5s23d9 
D) [Ar]4s14d10 
E) [Kr]5s24d10

Question 8

The wavelength of light emitted from a traffic light having a frequency of 5.75 × 1014 Hz is __________.

Accepted Answer

A) 702 nm 
B) 641 nm 
C) 674 nm 
D) 522 nm 
E) 583 nm 
A) 702 nm 
B) 641 nm 
C) 674 nm 
D) 522 nm 
E) 583 nm

Question 9

The larger the principal quantum number of an orbital, the lower is the energy of the electrons in that orbital.

Accepted Answer

A) True 
 B)False

Question 10

What is the frequency (s-1)of a photon that has an energy of 4.38 × 10-18 J?

Accepted Answer

A) 436 
B) 6.61 × 1015 
C) 1.45 × 10-16 
D) 2.30 × 107 
E) 1.31 × 10-9 
A) 436 
B) 6.61 × 1015 
C) 1.45 × 10-16 
D) 2.30 × 107 
E) 1.31 × 10-9

Question 11

Which group in the periodic table contains elements with the valence electron configuration of ns2npl?

Accepted Answer

A) 1A 
B) 2A 
C) 3A 
D) 4A 
E) 8A 
A) 1A 
B) 2A 
C) 3A 
D) 4A 
E) 8A

Question 12

At maximum, an f-subshell can hold __________ electrons, a d-subshell can hold __________ electrons, and a p-subshell can hold __________ electrons.

Accepted Answer

A) 14, 10, 6 
B) 2, 8, 18 
C) 14, 8, 2 
D) 2, 12, 21 
E) 2, 6, 10 
A) 14, 10, 6 
B) 2, 8, 18 
C) 14, 8, 2 
D) 2, 12, 21 
E) 2, 6, 10

Question 13

Which electron configuration represents a violation of the Pauli exclusion principle?

Accepted Answer

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

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

Question 15

The ground state electron configuration of Fe is __________.

Accepted Answer

A) 1s22s23s23p63d6 
B) 1s22s22p63s23p64s23d6 
C) 1s22s22p63s23p64s2 
D) 1a22s22p63s23p64s24d6 
E) 1s22s23s23p10 
A) 1s22s23s23p63d6 
B) 1s22s22p63s23p64s23d6 
C) 1s22s22p63s23p64s2 
D) 1a22s22p63s23p64s24d6 
E) 1s22s23s23p10

Question 16

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

Accepted Answer

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

Question 17

What is the frequency (s-1)of electromagnetic radiation that has a wavelength of 2.3 m?

Accepted Answer

A) 1.3 × 108 
B) 1.8 × 10-9 
C) 1.6 × 108 
D) 1.3 × 10-33 
E) 1.3 × 1033 
A) 1.3 × 108 
B) 1.8 × 10-9 
C) 1.6 × 108 
D) 1.3 × 10-33 
E) 1.3 × 1033

Question 18

Which of the subshells below do not exist due to the constraints upon the angular momentum quantum number?

Accepted Answer

A) 4f 
B) 4d 
C) 4p 
D) 4s 
E) none of the above 
A) 4f 
B) 4d 
C) 4p 
D) 4s 
E) none of the above

Question 19

Which one of the following is an incorrect subshell notation?

Accepted Answer

A) 4f 
B) 2d 
C) 3s 
D) 2p 
E) 3d 
A) 4f 
B) 2d 
C) 3s 
D) 2p 
E) 3d

Question 20

The energy of a photon that has a frequency of 8.21 × 1015 s-1 is __________ J.

Accepted Answer

A) 8.08 × 10-50 
B) 1.99 × 10-25 
C) 5.44 × 10-18 
D) 1.24 × 1049 
E) 1.26 × 10-19 
A) 8.08 × 10-50 
B) 1.99 × 10-25 
C) 5.44 × 10-18 
D) 1.24 × 1049 
E) 1.26 × 10-19

Exam 6: Electronic Structure of Atoms

The correct ground-state electron configuration for molybdenum is __________.

Which two elements have the same ground-state electron configuration?

The wavelength of a photon that has an energy of 6.33 × 10-18 J is __________ m.

The ground-state electron configuration of the element __________ is [Kr]5s14d5.

A radio station broadcasts at 105.2 MHz. The wavelength of the signal is __________ m.

It takes 261 kJ/mol to eject electrons from a certain metal surface. What is the longest wavelength of light (nm)that can be used to eject electrons from the surface of this metal via the photoelectric effect?

The electron configuration of a ground-state Ag atom is __________.

The wavelength of light emitted from a traffic light having a frequency of 5.75 × 1014 Hz is __________.

The larger the principal quantum number of an orbital, the lower is the energy of the electrons in that orbital.

What is the frequency (s-1)of a photon that has an energy of 4.38 × 10-18 J?

Which group in the periodic table contains elements with the valence electron configuration of ns2npl?

At maximum, an f-subshell can hold __________ electrons, a d-subshell can hold __________ electrons, and a p-subshell can hold __________ electrons.

Which electron configuration represents a violation of the Pauli exclusion principle?

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.

The ground state electron configuration of Fe is __________.

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

What is the frequency (s-1)of electromagnetic radiation that has a wavelength of 2.3 m?

Which of the subshells below do not exist due to the constraints upon the angular momentum quantum number?

Which one of the following is an incorrect subshell notation?

The energy of a photon that has a frequency of 8.21 × 1015 s-1 is __________ J.

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

The wavelength of a photon that has an energy of 6.33 × 10^-18 J is __________ m.

The ground-state electron configuration of the element __________ is [Kr]5s¹4d⁵.

The wavelength of light emitted from a traffic light having a frequency of 5.75 × 10¹⁴ Hz is __________.

What is the frequency (s^-1)of a photon that has an energy of 4.38 × 10^-18 J?

Which group in the periodic table contains elements with the valence electron configuration of ns²np^l?

At maximum, an f-subshell can hold electrons, a d-subshell can hold electrons, and a p-subshell can hold __ electrons.

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.

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

What is the frequency (s^-1)of electromagnetic radiation that has a wavelength of 2.3 m?

The energy of a photon that has a frequency of 8.21 × 10¹⁵ s^-1 is __________ J.