Question 1

For which one of the following elements is the second ionization energy over ten times larger than its first ionization energy?

Accepted Answer

A)  B 
B)  N 
C)  Li 
D)  Ne 
E)  Cu 
A)  B 
B)  N 
C)  Li 
D)  Ne 
E)  Cu

Question 2

Which is the correct valence shell orbital box notation for the ground state electron configuration of Fe? 3d 4s

Accepted Answer

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

Question 3

What 2- ion has the following ground state electron configuration?

Accepted Answer

A)  oxide ion 
B)  nitride ion 
C)  fluoride ion 
D)  sulfide ion 
E)  magnesium ion 
A)  oxide ion 
B)  nitride ion 
C)  fluoride ion 
D)  sulfide ion 
E)  magnesium ion

Question 4

Which element has the following ground state electron configuration?

Accepted Answer

A)  Be 
B)  O 
C)  Li 
D)  Si 
E)  N 
A)  Be 
B)  O 
C)  Li 
D)  Si 
E)  N

Question 5

How many electrons can be described by the following quantum numbers: n = 4,   = 2,   = 2,ms = -1/2?

Accepted Answer

A)  1 
B)  2 
C)  6 
D)  10 
E)  18 
A)  1 
B)  2 
C)  6 
D)  10 
E)  18

Question 6

An atom of which of the following elements has the most negative electron affinity?

Accepted Answer

A)  K 
B)  Sb 
C)  Cl 
D)  Br 
E)  O 
A)  K 
B)  Sb 
C)  Cl 
D)  Br 
E)  O

Question 7

The complete electron configuration of tin is _____.

Accepted Answer

A)  1s22s22p63s23p64s23d104p65s24d105p2 
B)  1s22s22p63s23p64s24p65s24d105d105p2 
C)  1s22s22p63s23p64s23d104d104p2 
D)  1s22s22p63s23p64s23d104p65s24d105d105p2 
E)  None of these 
A)  1s22s22p63s23p64s23d104p65s24d105p2 
B)  1s22s22p63s23p64s24p65s24d105d105p2 
C)  1s22s22p63s23p64s23d104d104p2 
D)  1s22s22p63s23p64s23d104p65s24d105d105p2 
E)  None of these

Question 8

Which of the given ions have the same ground state electron configuration: S2-,N3-,Mg2+,and Br-?

Accepted Answer

A)  N3- and Mg2+ 
B)  S2-,N3-,and Br- 
C)  S2- and Br- 
D)  Mg2+ and Br- 
E)  S2-,N3-,Mg2+,and Br- 
A)  N3- and Mg2+ 
B)  S2-,N3-,and Br- 
C)  S2- and Br- 
D)  Mg2+ and Br- 
E)  S2-,N3-,Mg2+,and Br-

Question 9

Which of the following orbital diagrams represents a diamagnetic atom? 1s 2s 2p

Accepted Answer

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

Question 10

Which of the following statements is true?

Accepted Answer

A)  Outer electrons efficiently shield one another from nuclear charge. 
B)  Core electrons effectively shield outer electrons from nuclear charge. 
C)  Valence electrons are the most difficult of all electrons to remove. 
D)  Core electrons have the lowest ionization energies of all electrons. 
E)  Valence electrons in the outermost shell of all elements have the highest ionization energy. 
A)  Outer electrons efficiently shield one another from nuclear charge. 
B)  Core electrons effectively shield outer electrons from nuclear charge. 
C)  Valence electrons are the most difficult of all electrons to remove. 
D)  Core electrons have the lowest ionization energies of all electrons. 
E)  Valence electrons in the outermost shell of all elements have the highest ionization energy.

Question 11

The element _____ has the electron configuration [Rn]5f127s2.

Accepted Answer

Question 12

What 2+ ion has the following ground state electron configuration?

Accepted Answer

A)  Mn2+ 
B)  Co2+ 
C)  Ni2+ 
D)  Cu2+ 
E)  Ge2+ 
A)  Mn2+ 
B)  Co2+ 
C)  Ni2+ 
D)  Cu2+ 
E)  Ge2+

Question 13

According to the Aufbau principle,which of the following subshells is typically filled next after the 4s subshell?

Accepted Answer

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

Question 14

Electron ________ is defined as the energy change for a process in which a gas phase atom acquires an electron.

Accepted Answer

The answer of Electron ________ is defined as the energy...

Question 15

Which of the following sets of quantum numbers is allowed?

Accepted Answer

A)  n = 2,   = 1,   = +1/2,ms = -1/2 
B)  n = 3,   = 2,   = +1,ms = +1 
C)  n = 4,   = 1,   = 0,ms = -1/2 
D)  n = 4,   = 3,   = -1,ms = 0 
E)  n = 5,   = 2,   = +2,ms = -1 
A)  n = 2,   = 1,   = +1/2,ms = -1/2 
B)  n = 3,   = 2,   = +1,ms = +1 
C)  n = 4,   = 1,   = 0,ms = -1/2 
D)  n = 4,   = 3,   = -1,ms = 0 
E)  n = 5,   = 2,   = +2,ms = -1

Question 16

The f-block elements are also referred to as the ________ and actinides.

Accepted Answer

The answer of The f-block elements are also referred to...

Question 17

Hund's rule states that the most stable arrangement of electrons (for a ground state electron configuration)

Accepted Answer

A)  has a filled valence shell of electrons. 
B)  has three electrons per orbital,each with identical spins. 
C)  has   values greater than or equal to +1. 
D)  has the maximum number of unpaired electrons,all with the same spin. 
E)  has two electrons per orbital,each with opposing spins. 
A)  has a filled valence shell of electrons. 
B)  has three electrons per orbital,each with identical spins. 
C)  has   values greater than or equal to +1. 
D)  has the maximum number of unpaired electrons,all with the same spin. 
E)  has two electrons per orbital,each with opposing spins.

Question 18

The small,but important,energy differences between 3s,3p,and 3d electrons is a consequence of

Accepted Answer

A)  the number of electrons they can hold 
B)  their principal quantum number 
C)  the Heisenberg uncertainty principle 
D)  thier effective nuclear charge 
E)  Hund's rule 
A)  the number of electrons they can hold 
B)  their principal quantum number 
C)  the Heisenberg uncertainty principle 
D)  thier effective nuclear charge 
E)  Hund's rule

Question 19

Which of the following species has the largest radius?

Accepted Answer

A)  Cl- 
B)  P 
C)  K- 
D)  Br- 
E)  Ca2+ 
A)  Cl- 
B)  P 
C)  K- 
D)  Br- 
E)  Ca2+

Question 20

Place the following atoms in order of increasing atomic radii: Se,Sb,Br,and Te.

Accepted Answer

A)  Br < Se < Te < Sb 
B)  Se < Br < Sb < Te 
C)  Se < Br < Te < As 
D)  Sb < Te < Se < Br 
E)  Te < Sb < Se < Br 
A)  Br < Se < Te < Sb 
B)  Se < Br < Sb < Te 
C)  Se < Br < Te < As 
D)  Sb < Te < Se < Br 
E)  Te < Sb < Se < Br

Exam 8: The Structure of Atoms and Periodic Trends

For which one of the following elements is the second ionization energy over ten times larger than its first ionization energy?

Which is the correct valence shell orbital box notation for the ground state electron configuration of Fe? 3d 4s

What 2- ion has the following ground state electron configuration?

Which element has the following ground state electron configuration?

How many electrons can be described by the following quantum numbers: n = 4, = 2, = 2,ms = -1/2?

An atom of which of the following elements has the most negative electron affinity?

The complete electron configuration of tin is _____.

Which of the given ions have the same ground state electron configuration: S2-,N3-,Mg2+,and Br-?

Which of the following orbital diagrams represents a diamagnetic atom? 1s 2s 2p

Which of the following statements is true?

The element _____ has the electron configuration [Rn]5f127s2.

What 2+ ion has the following ground state electron configuration?

According to the Aufbau principle,which of the following subshells is typically filled next after the 4s subshell?

Electron ________ is defined as the energy change for a process in which a gas phase atom acquires an electron.

Which of the following sets of quantum numbers is allowed?

The f-block elements are also referred to as the ________ and actinides.

Hund's rule states that the most stable arrangement of electrons (for a ground state electron configuration)

The small,but important,energy differences between 3s,3p,and 3d electrons is a consequence of

Which of the following species has the largest radius?

Place the following atoms in order of increasing atomic radii: Se,Sb,Br,and Te.

Basic Concepts of Chemistry

Lets Review: The Tools of Quantitative Chemistry

Atoms, molecules, and Ions

Chemical Reactions

Stoichiometry: Quantitative Information About Chemical Reactions

Principles of Chemical Reactivity: Energy and Chemical Reactions

The Structure of Atoms

Bonding and Molecular Structure

Bonding and Molecular Structure Orbital Hybridization and Molecular Orbitals

Gases and Their Properties

Intermolecular Forces and Liquids

The Solid State

Solutions and Their Behavior

Chemical Kinetics: the Rates of Chemical Reactions

Principles of Chemical Reactivity: Equilibria

Principles of Chemical Reactivity: the Chemistry of Acids and Bases

Principles of Chemical Reactivity: Other Aspects of Aqueous Equilibria

Principles of Chemical Reactivity: Entropy and Free Energy

Principles of Chemical Reactivity: Electron Transfer Reactions

Environmental Chemistry: Earths Environment, energy, and Sustainability

The Chemistry of the Main Group Elements

The Chemistry of the Transition Elements

Carbon: Not Just Another Element

Biochemistry

Nuclear Chemistry

Filters

How many electrons can be described by the following quantum numbers: n = 4, = 2, = 2,m_s = -1/2?

Which of the given ions have the same ground state electron configuration: S^2-,N^3-,Mg²⁺,and Br^-?

The element _____ has the electron configuration [Rn]5f¹²7s².