Question 1

Screening of the nuclear charge by core electrons in atoms is __________.

Accepted Answer

A) less efficient than that by valence electrons 
B) more efficient than that by valence electrons 
C) essentially identical to that by valence electrons 
D) responsible for a general decrease in atomic radius going down a group 
E) both essentially identical to that by valence electrons and responsible for a general decrease in atomic radius going down a group 
A) less efficient than that by valence electrons 
B) more efficient than that by valence electrons 
C) essentially identical to that by valence electrons 
D) responsible for a general decrease in atomic radius going down a group 
E) both essentially identical to that by valence electrons and responsible for a general decrease in atomic radius going down a group

Question 2

The electron configuration that belongs to the atom with the lowest second ionization energy is __________.

Accepted Answer

A) (i) 
B) (ii) 
C) (iii) 
D) (iv) 
E) (v) 
A) (i) 
B) (ii) 
C) (iii) 
D) (iv) 
E) (v)

Question 3

In their compounds, the charges on the alkali metals and the alkaline earth metals are __________ and __________, respectively.

Accepted Answer

The answer of In their compounds, the charges on the...

Question 4

In nature, the noble gases exist as

Accepted Answer

A) monatomic gaseous atoms 
B) the gaseous fluorides 
C) solids in rocks and in minerals 
D) alkali metal salts 
E) the sulfides 
A) monatomic gaseous atoms 
B) the gaseous fluorides 
C) solids in rocks and in minerals 
D) alkali metal salts 
E) the sulfides

Question 5

The alkali metal that is used to treat manic-depressive illness is __________.

Accepted Answer

A) Na 
B) K 
C) Li 
D) Rb 
E) Cs 
A) Na 
B) K 
C) Li 
D) Rb 
E) Cs

Question 6

Xenon has been shown to form compounds only when it is combined with __________.

Accepted Answer

A) something with a tremendous ability to remove electrons from other substances 
B) another noble gas 
C) something with a tremendous ability to donate electrons to other substances 
D) an alkali metal 
E) an alkaline earth metal 
A) something with a tremendous ability to remove electrons from other substances 
B) another noble gas 
C) something with a tremendous ability to donate electrons to other substances 
D) an alkali metal 
E) an alkaline earth metal

Question 7

Which one of the following elements has an allotrope that is produced in the upper atmosphere by lightning?

Accepted Answer

A) N 
B) O 
C) S 
D) Cl 
E) He 
A) N 
B) O 
C) S 
D) Cl 
E) He

Question 8

Of the following atoms, which has the largest first ionization energy?

Accepted Answer

A) Sb 
B) Se 
C) As 
D) S 
E) Ge 
A) Sb 
B) Se 
C) As 
D) S 
E) Ge

Question 9

Which equation correctly represents the first ionization of aluminum?

Accepted Answer

A) Al- (g)→ Al (g)+ e- 
B) Al (g)→ Al- (g)+ e- 
C) Al (g)+ e- → Al- (g) 
D) Al (g)→ Al+ (g)+ e- 
E) Al+ (g)+ e- → Al (g) 
A) Al- (g)→ Al (g)+ e- 
B) Al (g)→ Al- (g)+ e- 
C) Al (g)+ e- → Al- (g) 
D) Al (g)→ Al+ (g)+ e- 
E) Al+ (g)+ e- → Al (g)

Question 10

Which of the following correctly represents the second ionization of calcium?

Accepted Answer

A) Ca (g)→ Ca+ (g)+ e- 
B) Ca+ (g)→ Ca2+ (g)+ e- 
C) Ca- (g)+ e- → Ca2- (g) 
D) Ca+ (g)+ e- → Ca2+ (g) 
E) Ca+ (g)+ e- → Ca (g) 
A) Ca (g)→ Ca+ (g)+ e- 
B) Ca+ (g)→ Ca2+ (g)+ e- 
C) Ca- (g)+ e- → Ca2- (g) 
D) Ca+ (g)+ e- → Ca2+ (g) 
E) Ca+ (g)+ e- → Ca (g)

Question 11

Hydrogen is unique among the elements because __________. 1. It is not really a member of any particular group.
2. Its electron is not at all shielded from its nucleus.
3. It is the lightest element.
4. It is the only element to exist at room temperature as a diatomic gas.
5. It exhibits some chemical properties similar to those of groups 1A and 7A.

Accepted Answer

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

Question 12

Which one of the following atoms has the largest radius?

Accepted Answer

A) Sr 
B) Ca 
C) K 
D) Rb 
E) Y 
A) Sr 
B) Ca 
C) K 
D) Rb 
E) Y

Question 13

Of the following oxides, __________ is the most acidic.

Accepted Answer

A) CaO 
B) CO2 
C) Al2O3 
D) Li2O 
E) Na2O 
A) CaO 
B) CO2 
C) Al2O3 
D) Li2O 
E) Na2O

Question 14

The ion with the smallest diameter is __________.

Accepted Answer

A) Br- 
B) Cl- 
C) I- 
D) F- 
E) O2- 
A) Br- 
B) Cl- 
C) I- 
D) F- 
E) O2-

Question 15

When two elements combine to form a compound, the greater the difference in metallic character between the two elements, the greater the likelihood that the compound will be __________.

Accepted Answer

A) a gas at room temperature 
B) a solid at room temperature 
C) metallic 
D) nonmetallic 
E) a liquid at room temperature 
A) a gas at room temperature 
B) a solid at room temperature 
C) metallic 
D) nonmetallic 
E) a liquid at room temperature

Question 16

Of the following elements, __________ has the most negative electron affinity.

Accepted Answer

A) S 
B) Cl 
C) Se 
D) Br 
E) I 
A) S 
B) Cl 
C) Se 
D) Br 
E) I

Question 17

Chlorine is much more apt to exist as an anion than is sodium. This is because __________.

Accepted Answer

A) chlorine is bigger than sodium 
B) chlorine has a greater ionization energy than sodium does 
C) chlorine has a greater electron affinity than sodium does 
D) chlorine is a gas and sodium is a solid 
E) chlorine is more metallic than sodium 
A) chlorine is bigger than sodium 
B) chlorine has a greater ionization energy than sodium does 
C) chlorine has a greater electron affinity than sodium does 
D) chlorine is a gas and sodium is a solid 
E) chlorine is more metallic than sodium

Question 18

All of the halogens __________.

Accepted Answer

A) exist under ambient conditions as diatomic gases 
B) tend to form positive ions of several different charges 
C) tend to form negative ions of several different charges 
D) exhibit metallic character 
E) form salts with alkali metals with the formula MX 
A) exist under ambient conditions as diatomic gases 
B) tend to form positive ions of several different charges 
C) tend to form negative ions of several different charges 
D) exhibit metallic character 
E) form salts with alkali metals with the formula MX

Question 19

As successive electrons are removed from an element, the ionization energy __________.

Accepted Answer

The answer of As successive electrons are removed from an...

Question 20

Cl2 (g)+ H2O (l)→ __________

Accepted Answer

A) HCl (aq)+ HOCl (aq) 
B) 2 Cl- (aq)+ H2O (l) 
C) 2 HCl (aq)+ O2 (g) 
D) 2 HCl (aq)+ O2- (g) 
E) Cl2 (aq)+ H2O (l) 
A) HCl (aq)+ HOCl (aq) 
B) 2 Cl- (aq)+ H2O (l) 
C) 2 HCl (aq)+ O2 (g) 
D) 2 HCl (aq)+ O2- (g) 
E) Cl2 (aq)+ H2O (l)

Exam 7: Periodic Properties of the Elements

Screening of the nuclear charge by core electrons in atoms is __________.

The electron configuration that belongs to the atom with the lowest second ionization energy is __________.

In their compounds, the charges on the alkali metals and the alkaline earth metals are __________ and __________, respectively.

In nature, the noble gases exist as

The alkali metal that is used to treat manic-depressive illness is __________.

Xenon has been shown to form compounds only when it is combined with __________.

Which one of the following elements has an allotrope that is produced in the upper atmosphere by lightning?

Of the following atoms, which has the largest first ionization energy?

Which equation correctly represents the first ionization of aluminum?

Which of the following correctly represents the second ionization of calcium?

Which one of the following atoms has the largest radius?

Of the following oxides, __________ is the most acidic.

The ion with the smallest diameter is __________.

When two elements combine to form a compound, the greater the difference in metallic character between the two elements, the greater the likelihood that the compound will be __________.

Of the following elements, __________ has the most negative electron affinity.

Chlorine is much more apt to exist as an anion than is sodium. This is because __________.

All of the halogens __________.

As successive electrons are removed from an element, the ionization energy __________.

Cl2 (g)+ H2O (l)→ __________

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Thermochemistry

Electronic Structure of Atoms

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

In their compounds, the charges on the alkali metals and the alkaline earth metals are and , respectively.

Cl₂ (g)+ H₂O (l)→ __________