Question 1

An element that has the outer electron configuration 6s25d7 belongs to which period and group?

Accepted Answer

A)  period 7; group 9 
B)  period 6; group 7 
C)  period 6; group 2 
D)  period 6; group 9 
E)  period 7; group 7 
A)  period 7; group 9 
B)  period 6; group 7 
C)  period 6; group 2 
D)  period 6; group 9 
E)  period 7; group 7

Question 2

Match the following.
-number of unpaired electrons in Na

Accepted Answer

A) electrons in the outermost shell 
B) 1 
C) 2 
D) electrons in completed shells 
A) electrons in the outermost shell 
B) 1 
C) 2 
D) electrons in completed shells

Question 3

How many valence electrons do the alkaline earth metals possess?

Accepted Answer

A)  1 
B)  2 
C)  7 
D)  6 
E)  8 
A)  1 
B)  2 
C)  7 
D)  6 
E)  8

Question 4

How many unpaired electrons are present in the ground-state Ge atom?

Accepted Answer

A)  0 
B)  3 
C)  1 
D)  2 
E)  4 
A)  0 
B)  3 
C)  1 
D)  2 
E)  4

Question 5

Which reaction below represents the electron affinity of Li?

Accepted Answer

A)  Li(g) + e⁻ → Li⁻(g) 
B)  Li(g) → Li⁺(g) + e⁻ 
C)  Li(g) + e⁻ → Li⁺(g) 
D)  Li⁺(g) → Li(g) + e⁻ 
E)  Li⁺(g) + e⁻ → Li(g) 
A)  Li(g) + e⁻ → Li⁻(g) 
B)  Li(g) → Li⁺(g) + e⁻ 
C)  Li(g) + e⁻ → Li⁺(g) 
D)  Li⁺(g) → Li(g) + e⁻ 
E)  Li⁺(g) + e⁻ → Li(g)

Question 6

Of the following, which element has the highest first ionization energy?

Accepted Answer

A)  Sr 
B)  Br 
C)  K 
D)  Te 
A)  Sr 
B)  Br 
C)  K 
D)  Te

Question 7

Which element has the highest first electron affinity?

Accepted Answer

A)  Na 
B)  Mg 
C)  O 
D)  Ne 
A)  Na 
B)  Mg 
C)  O 
D)  Ne

Question 8

Which reaction below represents the first ionization of O?

Accepted Answer

A)  O⁺(g) + e⁻ → O(g) 
B)  O(g) + e⁻ → O⁻(g) 
C)  O⁻(g) → O(g) + e⁻ 
D)  O(g) → O⁺(g) + e⁻ 
E)  O⁻(g) + e⁻ → O2⁻(g) 
A)  O⁺(g) + e⁻ → O(g) 
B)  O(g) + e⁻ → O⁻(g) 
C)  O⁻(g) → O(g) + e⁻ 
D)  O(g) → O⁺(g) + e⁻ 
E)  O⁻(g) + e⁻ → O2⁻(g)

Question 9

Place the following in order of decreasing metallic character. P As K

Accepted Answer

A)  P > As > K 
B)  As > P > K 
C)  K > P > As 
D)  As > K > P 
E)  K > As > P 
A)  P > As > K 
B)  As > P > K 
C)  K > P > As 
D)  As > K > P 
E)  K > As > P

Question 10

The condensed electron configuration of arsenic, element 33, is ________.

Accepted Answer

A)  [Ar] 3d104p3 
B)  [Ar]3d104s24p3 
C)  [Kr]4s43d10 
D)  [Kr] 4s24p3 
E)  [Ar] 4s24p3 
A)  [Ar] 3d104p3 
B)  [Ar]3d104s24p3 
C)  [Kr]4s43d10 
D)  [Kr] 4s24p3 
E)  [Ar] 4s24p3

Question 11

Place the following ions in order of increasing radius. Ca2⁺ S2⁻ Cl⁻

Accepted Answer

A)  Ca2⁺ 2⁻ 
B)  Cl⁻ 2⁺ 2⁻ 
C)  S2⁻ 2⁺ 
D)  Ca2⁺ 2⁻ 2⁻ 2⁺ 
A)  Ca2⁺ 2⁻ 
B)  Cl⁻ 2⁺ 2⁻ 
C)  S2⁻ 2⁺ 
D)  Ca2⁺ 2⁻ 2⁻ 2⁺

Question 12

An element that has the valence electron configuration 6s26p2 belongs to which period and group?

Accepted Answer

A)  period 6; group 16 
B)  period 6; group 6 
C)  period 6; group 4 
D)  period 6; group 14 
E)  period 6; group 9 
A)  period 6; group 16 
B)  period 6; group 6 
C)  period 6; group 4 
D)  period 6; group 14 
E)  period 6; group 9

Question 13

An element that has the valence electron configuration 5s25p3 belongs to which period and group?

Accepted Answer

A)  period 5; group 15 
B)  period 5; group 2 
C)  period 5; group 3 
D)  period 5; group 5 
E)  period 4; group 13 
A)  period 5; group 15 
B)  period 5; group 2 
C)  period 5; group 3 
D)  period 5; group 5 
E)  period 4; group 13

Question 14

Of the following, which element has the highest first ionization energy?

Accepted Answer

A)  Sr 
B)  Rb 
C)  Na 
D)  Ca 
A)  Sr 
B)  Rb 
C)  Na 
D)  Ca

Question 15

Identify the element that has a ground-state electronic configuration of [Kr]5s24d5.

Accepted Answer

A)  Tc 
B)  Mn 
C)  Nb 
D)  Ru 
A)  Tc 
B)  Mn 
C)  Nb 
D)  Ru

Question 16

How many electrons are in the 4d orbital of Zr?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
E)  10 
A)  2 
B)  4 
C)  6 
D)  8 
E)  10

Question 17

Of the following, which atom has the largest atomic radius?

Accepted Answer

A)  Rb 
B)  I 
C)  Cs 
D)  At 
A)  Rb 
B)  I 
C)  Cs 
D)  At

Question 18

Of the following, which element has the highest first ionization energy?

Accepted Answer

A)  barium 
B)  cesium 
C)  indium 
D)  rubidium 
A)  barium 
B)  cesium 
C)  indium 
D)  rubidium

Question 19

Describe the reaction of the alkali metals with nonmetals.

Accepted Answer

A)  inert 
B)  vigorous 
C)  mild reaction 
D)  forms water 
E)  dissolves 
A)  inert 
B)  vigorous 
C)  mild reaction 
D)  forms water 
E)  dissolves

Question 20

Match the following.
-core electrons

Accepted Answer

A) electrons in the outermost shell 
B) 1 
C) 2 
D) electrons in completed shells 
A) electrons in the outermost shell 
B) 1 
C) 2 
D) electrons in completed shells

Exam 8: Periodic Properties of the Elements

An element that has the outer electron configuration 6s25d7 belongs to which period and group?

Match the following. -number of unpaired electrons in Na

How many valence electrons do the alkaline earth metals possess?

How many unpaired electrons are present in the ground-state Ge atom?

Which reaction below represents the electron affinity of Li?

Of the following, which element has the highest first ionization energy?

Which element has the highest first electron affinity?

Which reaction below represents the first ionization of O?

Place the following in order of decreasing metallic character. P As K

The condensed electron configuration of arsenic, element 33, is ________.

Place the following ions in order of increasing radius. Ca2⁺ S2⁻ Cl⁻

An element that has the valence electron configuration 6s26p2 belongs to which period and group?

An element that has the valence electron configuration 5s25p3 belongs to which period and group?

Of the following, which element has the highest first ionization energy?

Identify the element that has a ground-state electronic configuration of [Kr]5s24d5.

How many electrons are in the 4d orbital of Zr?

Of the following, which atom has the largest atomic radius?

Of the following, which element has the highest first ionization energy?

Describe the reaction of the alkali metals with nonmetals.

Match the following. -core electrons

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry Ii: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

An element that has the outer electron configuration 6s²5d⁷ belongs to which period and group?

Place the following ions in order of increasing radius. Ca²⁺ S²⁻ Cl⁻

An element that has the valence electron configuration 6s²6p² belongs to which period and group?

An element that has the valence electron configuration 5s²5p³ belongs to which period and group?

Identify the element that has a ground-state electronic configuration of [Kr]5s²4d⁵.