Question 1

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

Question 2

Elements in the modern version of the periodic table are arranged in order of increasing

Accepted Answer

A)  atomic number 
B)  oxidation number 
C)  average atomic mass 
D)  atomic mass 
E)  number of isotopes 
A)  atomic number 
B)  oxidation number 
C)  average atomic mass 
D)  atomic mass 
E)  number of isotopes

Question 3

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

Accepted Answer

A)  C 
B)  Si 
C)  N 
D)  B 
E)  P 
A)  C 
B)  Si 
C)  N 
D)  B 
E)  P

Question 4

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

Accepted Answer

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

Question 5

Which of the following traits characterizes the alkali metals?

Accepted Answer

A)  very high melting point 
B)  formation of dianions 
C)  existence as diatomic molecules 
D)  the lowest first ionization energies in a period 
E)  the smallest atomic radius in a period 
A)  very high melting point 
B)  formation of dianions 
C)  existence as diatomic molecules 
D)  the lowest first ionization energies in a period 
E)  the smallest atomic radius in a period

Question 6

Which of the following correctly represents the electron affinity of bromine?

Accepted Answer

A)  Br (g) + e-  -Br-  (g) 
B)  Br+ (g) + e- - Br (g) 
C)  Br2 (g) + 2 e- - 2 Br- (g) 
D)  Br (g) -Br+ (g) + e- 
E)  Br2 (g) + e-  -Br-  (g) 
A)  Br (g) + e-  -Br-  (g) 
B)  Br+ (g) + e- - Br (g) 
C)  Br2 (g) + 2 e- - 2 Br- (g) 
D)  Br (g) -Br+ (g) + e- 
E)  Br2 (g) + e-  -Br-  (g)

Question 7

The effective nuclear charge acting on an electron is larger than the actual nuclear charge.

Accepted Answer

A) True 
 B)False

Question 8

Which alkaline earth metal will not react with liquid water or with steam ?

Accepted Answer

A)  Mg 
B)  Ba 
C)  Be 
D)  Ca 
E)  They all react with liquid water and with steam. 
A)  Mg 
B)  Ba 
C)  Be 
D)  Ca 
E)  They all react with liquid water and with steam.

Question 9

The most common and stable allotrope of sulfur is _.

Accepted Answer

A)  S2 
B)  S4 
C)  S8 
D)  S 
E)  Sulfur does not form allotropes. 
A)  S2 
B)  S4 
C)  S8 
D)  S 
E)  Sulfur does not form allotropes.

Question 10

An alkali metal forms a compound with chlorine with the formula . (The symbol M represents any one of the alkali metals.)

Accepted Answer

A)  M2Cl2  
B)  MCl 
C)  M2Cl 
D)  MCl2  
E)  MCl3 
A)  M2Cl2  
B)  MCl 
C)  M2Cl 
D)  MCl2  
E)  MCl3

Question 11

The atomic radius of iodine is one- half the distance separating the iodine nuclei.

Accepted Answer

A) True 
 B)False

Question 12

Consider the following electron configurations to answer the questions that follow:
(i) 1sS1U1P12 S1S1P02sS1U1P12 S1S1P02pS1U1P16 S1S1P03sS1U1P11S1S1P0
(ii) 1sS1U1P12 S1S1P02sS1U1P12 S1S1P02pS1U1P16S1S1P0S1U1P1 S1S1P03sS1U1P12S1S1P0
(iii) 1sS1U1P12 S1S1P02sS1U1P12 S1S1P02pS1U1P16 S1S1P03sS1U1P12S1S1P0S1U1P1 S1S1P03pS1U1P11S1S1P0
(iv) 1sS1U1P12 S1S1P02sS1U1P12 S1S1P02pS1U1P16 S1S1P03sS1U1P12 S1S1P03pS1U1P14 S1S1P0(v) 1sS1U1P12 S1S1P02sS1U1P12 S1S1P02pS1U1P16 S1S1P03sS1U1P12 S1S1P03pS1U1P15S1S1P0
-The electron configuration of the atom that is expected to have a positive electron affinity is

Accepted Answer

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

Question 13

All the elements in group 8A are gases at room temperature. Of all the groups in the periodic table, only group _ contains examples of elements that are gas, liquid, and solid at room temperature.

Accepted Answer

A)  5A 
B)  6A 
C)  7A 
D)  1A 
E)  2A 
A)  5A 
B)  6A 
C)  7A 
D)  1A 
E)  2A

Question 14

Which of these oxides is most basic?

Accepted Answer

A)  CO2  
B)  K2O 
C)  Al2O3  
D)  MgO 
E)  Na2O 
A)  CO2  
B)  K2O 
C)  Al2O3  
D)  MgO 
E)  Na2O

Question 15

The noble gases were, until relatively recently, thought to be entirely unreactive. Experiments in the early 1960s showed that Xe could, in fact, form compounds with fluorine. The formation of compounds consisting of Xe is made possible by _.

Accepted Answer

A)  the stability of xenon atoms 
B)  the availability of xenon atoms 
C)  xenon's relatively low ionization energy 
D)  xenon's noble gas electron configuration 
E)  xenon's relatively low electron affinity 
A)  the stability of xenon atoms 
B)  the availability of xenon atoms 
C)  xenon's relatively low ionization energy 
D)  xenon's noble gas electron configuration 
E)  xenon's relatively low electron affinity

Question 16

Hydrogen is unique among the elements because _.
1) It has only one valence electron.
2) It is the only element that can emit an atomic spectrum.
3) Its electron is not at all shielded from its nucleus.
4) It is the lightest element.
5) It is the only element to exist at room temperature as a diatomic gas.

Accepted Answer

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

Question 17

Of the choices below, which gives the order for first ionization energies?

Accepted Answer

A)  Ar > Cl > S > Si > Al 
B)  Al > Si > S > Cl > Ar 
C)  S > Si > Cl > Al > Ar 
D)  Cl > S > Al > Ar > Si 
E)  Cl > S > Al > Si > Ar 
A)  Ar > Cl > S > Si > Al 
B)  Al > Si > S > Cl > Ar 
C)  S > Si > Cl > Al > Ar 
D)  Cl > S > Al > Ar > Si 
E)  Cl > S > Al > Si > Ar

Question 18

Which of the following has the largest second ionization energy?

Accepted Answer

A)  Ca 
B)  K 
C)  Ge 
D)  Se 
E)  Ga 
A)  Ca 
B)  K 
C)  Ge 
D)  Se 
E)  Ga

Question 19

Alkali metals tend to be more reactive than alkaline earth metals because .

Accepted Answer

A)  alkali metals have lower densities 
B)  alkali metals have lower melting points 
C)  alkali metals have lower ionization energies 
D)  alkali metals have greater electron affinities 
E)  alkali metals are not more reactive than alkaline earth metals 
A)  alkali metals have lower densities 
B)  alkali metals have lower melting points 
C)  alkali metals have lower ionization energies 
D)  alkali metals have greater electron affinities 
E)  alkali metals are not more reactive than alkaline earth metals

Question 20

The reaction of potassium metal with elemental hydrogen produces .

Accepted Answer

A)  KH2 
B)  K2H 
C)  KH 
D)  None of the above; potassium will not react directly with hydrogen. 
E)  KOH 
A)  KH2 
B)  K2H 
C)  KH 
D)  None of the above; potassium will not react directly with hydrogen. 
E)  KOH

Exam 7: Periodic Properties of the Elements

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

Elements in the modern version of the periodic table are arranged in order of increasing

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

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

Which of the following traits characterizes the alkali metals?

Which of the following correctly represents the electron affinity of bromine?

The effective nuclear charge acting on an electron is larger than the actual nuclear charge.

Which alkaline earth metal will not react with liquid water or with steam ?

The most common and stable allotrope of sulfur is _.

An alkali metal forms a compound with chlorine with the formula . (The symbol M represents any one of the alkali metals.)

The atomic radius of iodine is one- half the distance separating the iodine nuclei.

Consider the following electron configurations to answer the questions that follow: (i) 1s2 2s2 2p6 3s1 (ii) 1s2 2s2 2p6 3s2 (iii) 1s2 2s2 2p6 3s2 3p1 (iv) 1s2 2s2 2p6 3s2 3p4 (v) 1s2 2s2 2p6 3s2 3p5 -The electron configuration of the atom that is expected to have a positive electron affinity is

All the elements in group 8A are gases at room temperature. Of all the groups in the periodic table, only group _ contains examples of elements that are gas, liquid, and solid at room temperature.

Which of these oxides is most basic?

The noble gases were, until relatively recently, thought to be entirely unreactive. Experiments in the early 1960s showed that Xe could, in fact, form compounds with fluorine. The formation of compounds consisting of Xe is made possible by _.

Of the choices below, which gives the order for first ionization energies?

Which of the following has the largest second ionization energy?

Alkali metals tend to be more reactive than alkaline earth metals because .

The reaction of potassium metal with elemental hydrogen produces .

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Electronic Structure of Atoms

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

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