Question 1

Use the periodic table to determine the ground-state electron configuration for the following element: F

Accepted Answer

A) [He]2s22p5 
B) [He]2s23p5 
C) [He]3s22p5 
D) [He]2s21d102p5 
E) [He]3s23p5 
A) [He]2s22p5 
B) [He]2s23p5 
C) [He]3s22p5 
D) [He]2s21d102p5 
E) [He]3s23p5

Question 2

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

Accepted Answer

A) 1 
B) 2 
C) 0 
D) 3 
E) 5 
A) 1 
B) 2 
C) 0 
D) 3 
E) 5

Question 3

How many electrons are in the outermost shell of the Ga3+ ion in its ground state?

Accepted Answer

A) 2 
B) 3 
C) 6 
D) 18 
A) 2 
B) 3 
C) 6 
D) 18

Question 4

Identify the number of valence electrons for Cd.

Accepted Answer

A) 8 
B) 10 
C) 12 
D) 2 
E) 6 
A) 8 
B) 10 
C) 12 
D) 2 
E) 6

Question 5

Which element has the ground-state electron configuration [Xe]6s24f7?

Accepted Answer

A) Pt 
B) Eu 
C) Gd 
D) Tb 
A) Pt 
B) Eu 
C) Gd 
D) Tb

Question 6

How many valence electrons do the noble gases possess?

Accepted Answer

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

Question 7

Place the following in order of increasing IE1. K Ca Rb

Accepted Answer

A) Ca < K < Rb 
B) Rb < Ca < K 
C) Ca < Rb < K 
D) Rb < K < Ca 
E) K < Ca < Rb 
A) Ca < K < Rb 
B) Rb < Ca < K 
C) Ca < Rb < K 
D) Rb < K < Ca 
E) K < Ca < Rb

Question 8

Identify the ground-state electron configuration for Cd.

Accepted Answer

A) [Kr]5s25d10 
B) [Kr]5s24d105p2 
C) [Kr]4d10 
D) [Kr]5s24d8 
E) [Kr]5s24d10 
A) [Kr]5s25d10 
B) [Kr]5s24d105p2 
C) [Kr]4d10 
D) [Kr]5s24d8 
E) [Kr]5s24d10

Question 9

How many valence electrons do the halogens possess?

Accepted Answer

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

Question 10

Why do Li, Na, and K have similar chemical properties?

Accepted Answer

They are in the same

Question 11

How many valence electrons does a neutral tellurium atom have?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 52 
A) 2 
B) 4 
C) 6 
D) 52

Question 12

Which of the following have the same number of valence electrons?

Accepted Answer

A) Rb, Sb, I 
B) Ga, Sn, Bi 
C) As, Sb, Bi 
D) Ar, Kr, Br 
A) Rb, Sb, I 
B) Ga, Sn, Bi 
C) As, Sb, Bi 
D) Ar, Kr, Br

Question 13

Use the periodic table to predict the most stable oxidation state for the following element: Pb

Accepted Answer

A) +1 
B) +2 
C) +3 
D) -1 
E) -2 
A) +1 
B) +2 
C) +3 
D) -1 
E) -2

Question 14

What period 3 element has the following ionization energies (all in kJ mol-1)? IE1 = 1012 IE2 = 1900 IE3 = 2910 IE4 = 4960 IE5 = 6270 IE6 = 22 200

Accepted Answer

A) Si 
B) S 
C) P 
D) Cl 
E) Mg 
A) Si 
B) S 
C) P 
D) Cl 
E) Mg

Question 15

Identify the number of valence electrons for O.

Accepted Answer

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

Question 16

Use the periodic table to determine the ground-state electron configuration for the following element: Te

Accepted Answer

A) [Kr]5s24d105p6 
B) [Kr]5s24d105p4 
C) [Xe]5s24d105p4 
D) [Xe]6s25d104f146p4 
E) [Kr]5s24d6 
A) [Kr]5s24d105p6 
B) [Kr]5s24d105p4 
C) [Xe]5s24d105p4 
D) [Xe]6s25d104f146p4 
E) [Kr]5s24d6

Question 17

Which ionization process requires the most energy?

Accepted Answer

A) W(g)→ W+(g)+ e- 
B) W+(g)→ W2+(g)+ e- 
C) W2+(g)→ W3+(g)+ e- 
D) W3+(g)→ W4+(g)+ e- 
A) W(g)→ W+(g)+ e- 
B) W+(g)→ W2+(g)+ e- 
C) W2+(g)→ W3+(g)+ e- 
D) W3+(g)→ W4+(g)+ e-

Question 18

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 19

Use the periodic table to predict the most stable oxidation state for the following element: B

Accepted Answer

A) +1 
B) +2 
C) +3 
D) -1 
E) -2 
A) +1 
B) +2 
C) +3 
D) -1 
E) -2

Question 20

An element that has the valence electron configuration 3s1 belongs to which period and group?

Accepted Answer

A) period 4; group 7 
B) period 4; group 2 
C) period 4; group 1 
D) period 3; group 2 
E) period 3; group 1 
A) period 4; group 7 
B) period 4; group 2 
C) period 4; group 1 
D) period 3; group 2 
E) period 3; group 1

Exam 8: Periodic Properties of the Elements

Use the periodic table to determine the ground-state electron configuration for the following element: F

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

How many electrons are in the outermost shell of the Ga3+ ion in its ground state?

Identify the number of valence electrons for Cd.

Which element has the ground-state electron configuration [Xe]6s24f7?

How many valence electrons do the noble gases possess?

Place the following in order of increasing IE1. K Ca Rb

Identify the ground-state electron configuration for Cd.

How many valence electrons do the halogens possess?

Why do Li, Na, and K have similar chemical properties?

How many valence electrons does a neutral tellurium atom have?

Which of the following have the same number of valence electrons?

Use the periodic table to predict the most stable oxidation state for the following element: Pb

What period 3 element has the following ionization energies (all in kJ mol-1)? IE1 = 1012 IE2 = 1900 IE3 = 2910 IE4 = 4960 IE5 = 6270 IE6 = 22 200

Identify the number of valence electrons for O.

Use the periodic table to determine the ground-state electron configuration for the following element: Te

Which ionization process requires the most energy?

Which reaction below represents the electron affinity of Li?

Use the periodic table to predict the most stable oxidation state for the following element: B

An element that has the valence electron configuration 3s1 belongs to which period and group?

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 Metallury

Transition Metals and Coordination Compounds

Filters

How many electrons are in the outermost shell of the Ga³⁺ ion in its ground state?

Which element has the ground-state electron configuration [Xe]6s²4f⁷?

Place the following in order of increasing IE₁. K Ca Rb

What period 3 element has the following ionization energies (all in kJ mol^-1)? IE₁ = 1012 IE₂ = 1900 IE₃= 2910 IE₄= 4960 IE₅= 6270 IE₆= 22 200

An element that has the valence electron configuration 3s¹ belongs to which period and group?