Question 1

Which of the following has the highest first ionization potential: K, Ge, Kr, Ca, Br?

Accepted Answer

A)  K 
B)  Ge 
C)  Kr 
D)  Ca 
E)  Br 
A)  K 
B)  Ge 
C)  Kr 
D)  Ca 
E)  Br C

Question 2

Find statements describing the trends in the chemical behavior of the elements: 
I. The atomic size within a period of the periodic table decreases from left to right.
II. Metallic character increases within a period from right to left.
III. Basic oxides are formed by the elements near the end of each period.
IV. The tendency to lose electrons is greater among the elements of Group 1 than in Group 13.
V. Ionization potential increases as atomic size decreases.

Accepted Answer

A)  I), II), III), IV) 
B)  II), III), IV), V) 
C)  I), II), IV), V) 
D)  I), II), III), V) 
E)  I), III), IV), V) 
A)  I), II), III), IV) 
B)  II), III), IV), V) 
C)  I), II), IV), V) 
D)  I), II), III), V) 
E)  I), III), IV), V) C

Question 3

List in order of increasing ionization energy: Na, K, F, Mg, Ne.

Accepted Answer

A)  Na < K < F < Ne < Mg 
B)  K < Na < Mg < F < Ne 
C)  Ne < Mg < F < K < Na 
D)  F < Mg < Ne < K < Na 
E)  Ne < Na < Mg < F < K 
A)  Na < K < F < Ne < Mg 
B)  K < Na < Mg < F < Ne 
C)  Ne < Mg < F < K < Na 
D)  F < Mg < Ne < K < Na 
E)  Ne < Na < Mg < F < K B

Question 4

Chlorine has a large negative electron affinity. Therefore, chlorine is most likely to:

Accepted Answer

A)  act as an oxidizing agent 
B)  have a small first ionization energy 
C)  act as a reducing agent 
D)  form a basic oxide 
E)  release electrons readily to other atoms 
A)  act as an oxidizing agent 
B)  have a small first ionization energy 
C)  act as a reducing agent 
D)  form a basic oxide 
E)  release electrons readily to other atoms

Question 5

From the following data, what is the estimated boiling point of liquid chlorine? argon/bp 87 K bromine/bp 332 K fluorine/bp 86 K sulfur/bp 718 K

Accepted Answer

A)  525 K 
B)  402 K 
C)  209 K 
D)  148 K 
E)  123 K 
A)  525 K 
B)  402 K 
C)  209 K 
D)  148 K 
E)  123 K

Question 6

Plutonium is among a group of elements referred to as:

Accepted Answer

A)  antinides 
B)  alkalides 
C)  chalcocides 
D)  halides 
E)  lanthanides 
A)  antinides 
B)  alkalides 
C)  chalcocides 
D)  halides 
E)  lanthanides

Question 7

Which main group atom or ion should be included in the following list? Br-, Se2-, Kr, Sr2+

Accepted Answer

A)  As3- 
B)  Ar 
C)  K+ 
D)  S2- 
A)  As3- 
B)  Ar 
C)  K+ 
D)  S2-

Question 8

Which of the following isoelectronic species has the largest radius?

Accepted Answer

A)  Ne 
B)  F- 
C)  Mg2+ 
D)  Na+ 
E)  O2- 
A)  Ne 
B)  F- 
C)  Mg2+ 
D)  Na+ 
E)  O2-

Question 9

A metallic oxide plus water forms an acid.

Accepted Answer

A) True 
 B)False

Question 10

Why is the electron affinity so positive for the group 12 elements?

Accepted Answer

A)  The added electron would have to go into a new shell. 
B)  The added electron would have to be added into the half-filled p subshell. 
C)  The added electron would have to be added into the p subshell. 
D)  The groups 12 elements are diatomic elements. 
E)  Electrons can't be added to gases. 
A)  The added electron would have to go into a new shell. 
B)  The added electron would have to be added into the half-filled p subshell. 
C)  The added electron would have to be added into the p subshell. 
D)  The groups 12 elements are diatomic elements. 
E)  Electrons can't be added to gases.

Question 11

Why is the electron affinity so positive for the noble gas elements?

Accepted Answer

A)  The added electron would have to go into a new shell. 
B)  The added electron would have to be added into the half-filled p subshell. 
C)  The added electron would have to be added into the p subshell. 
D)  The noble gas elements are diatomic elements. 
E)  Electrons can't be added to gases. 
A)  The added electron would have to go into a new shell. 
B)  The added electron would have to be added into the half-filled p subshell. 
C)  The added electron would have to be added into the p subshell. 
D)  The noble gas elements are diatomic elements. 
E)  Electrons can't be added to gases.

Question 12

Which series of elements shows the smallest difference in atomic radii?

Accepted Answer

A)  Li......F 
B)  Be......Ra 
C)  He......Xe 
D)  C......Pb 
E)  Sc......Zn 
A)  Li......F 
B)  Be......Ra 
C)  He......Xe 
D)  C......Pb 
E)  Sc......Zn

Question 13

Which of the following has the largest number of unpaired electrons: S, Cr2+, N, K, Ne?

Accepted Answer

A)  S 
B)  Cr2+ 
C)  N 
D)  K 
E)  Ne 
A)  S 
B)  Cr2+ 
C)  N 
D)  K 
E)  Ne

Question 14

An atom with an even number of electrons is always diamagnetic.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following reactions gives a positive value for the electron affinity?

Accepted Answer

A)  S-(g) + e- → S2-(g) 
B)  O(g) + e- → O-(g) 
C)  S(g) + e- → S-(g) 
D)  Br(g) + e- → Br-(g) 
A)  S-(g) + e- → S2-(g) 
B)  O(g) + e- → O-(g) 
C)  S(g) + e- → S-(g) 
D)  Br(g) + e- → Br-(g)

Question 16

Which of the following has the greatest number of unpaired electrons?

Accepted Answer

A)  Cr2+ 
B)  Ti3+ 
C)  Co2+ 
D)  Ni 
A)  Cr2+ 
B)  Ti3+ 
C)  Co2+ 
D)  Ni

Question 17

The similar chemical behavior of the elements in a given group in the periodic table is best accounted for by the fact that atoms of these elements have:

Accepted Answer

A)  the same number of isotopes 
B)  the same number of electrons 
C)  the same number of electrons in the outermost (valence) shell 
D)  similar nuclear structures 
E)  the same number of protons 
A)  the same number of isotopes 
B)  the same number of electrons 
C)  the same number of electrons in the outermost (valence) shell 
D)  similar nuclear structures 
E)  the same number of protons

Question 18

The energy difference between atomic cesium and its most stable ion, in the gaseous state, is referred to as ________.

Accepted Answer

A)  atomic energy 
B)  electron affinity 
C)  entropy of vaporization 
D)  ionization energy 
E)  magnetic moment 
A)  atomic energy 
B)  electron affinity 
C)  entropy of vaporization 
D)  ionization energy 
E)  magnetic moment

Question 19

Which of the following has the most negative electron affinity: Li, Be, N, O, F?

Accepted Answer

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

Question 20

What is the ground state electron configuration for iron(III)?

Accepted Answer

A)  [Ar]3d5 
B)  [Ar]4s23d3 
C)  [Ar]4s13d4 
D)  [Ar]4s24p3 
E)  [Ar]4p5 
A)  [Ar]3d5 
B)  [Ar]4s23d3 
C)  [Ar]4s13d4 
D)  [Ar]4s24p3 
E)  [Ar]4p5

Exam 9: The Periodic Table and Some Atomic Properties

Which of the following has the highest first ionization potential: K, Ge, Kr, Ca, Br?

List in order of increasing ionization energy: Na, K, F, Mg, Ne.

Chlorine has a large negative electron affinity. Therefore, chlorine is most likely to:

From the following data, what is the estimated boiling point of liquid chlorine? argon/bp 87 K bromine/bp 332 K fluorine/bp 86 K sulfur/bp 718 K

Plutonium is among a group of elements referred to as:

Which main group atom or ion should be included in the following list? Br-, Se2-, Kr, Sr2+

Which of the following isoelectronic species has the largest radius?

A metallic oxide plus water forms an acid.

Why is the electron affinity so positive for the group 12 elements?

Why is the electron affinity so positive for the noble gas elements?

Which series of elements shows the smallest difference in atomic radii?

Which of the following has the largest number of unpaired electrons: S, Cr2+, N, K, Ne?

An atom with an even number of electrons is always diamagnetic.

Which of the following reactions gives a positive value for the electron affinity?

Which of the following has the greatest number of unpaired electrons?

The similar chemical behavior of the elements in a given group in the periodic table is best accounted for by the fact that atoms of these elements have:

The energy difference between atomic cesium and its most stable ion, in the gaseous state, is referred to as ________.

Which of the following has the most negative electron affinity: Li, Be, N, O, F?

What is the ground state electron configuration for iron(III)?

Matter - Its Properties and Measurement

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Gases

Thermochemistry

Electrons in Atoms

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Additional Aspects

Intermolecular Forces: Liquids and Solids

Solutions and Their Physical Properties

Chemical Kinetics

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acid-Base Equilibria

Solubility and Complex-Ion Equilibria

Spontaneous Change: Entropy and Free Energy

Electrochemistry

Main Group Elements I: Groups 1, 2, 13, and 14

Main Group Elements II: Groups 18, 17, 16, 15, and Hydrogen

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry 1-41

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

Filters

Which main group atom or ion should be included in the following list? Br-, Se^2-, Kr, Sr²⁺