Question 1

Identify a characteristic of halogens.

Accepted Answer

A)  powerful reducing agents 
B)  forms water in reactions 
C)  powerful oxidizing agents 
D)  absorbs water in reactions 
E)  inert 
A)  powerful reducing agents 
B)  forms water in reactions 
C)  powerful oxidizing agents 
D)  absorbs water in reactions 
E)  inert

Question 2

What was the predicted formula for the chloride of eka-aluminum (gallium)?

Accepted Answer

A)  XCl 
B)  XCl2 
C)  XCl3 
D)  XCl4 
A)  XCl 
B)  XCl2 
C)  XCl3 
D)  XCl4

Question 3

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

Accepted Answer

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

Question 4

Define ionization energy.

Accepted Answer

Ionization energy is

Question 5

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

Accepted Answer

A)  [Ne]3s23p1 
B)  [Ne]3s23p3 
C)  [Ne]3s23p6 
D)  [Ne]3s23p2 
E)  [Ne]3s23p4 
A)  [Ne]3s23p1 
B)  [Ne]3s23p3 
C)  [Ne]3s23p6 
D)  [Ne]3s23p2 
E)  [Ne]3s23p4

Question 6

Identify the ground-state electron configuration for I.

Accepted Answer

A)  [Kr]5s24d105p6 
B)  [Kr]5s24d105p5 
C)  [Kr]4d105p6 
D)  [Kr]5s25p6 
E)  [Kr]5s25d105p6 
A)  [Kr]5s24d105p6 
B)  [Kr]5s24d105p5 
C)  [Kr]4d105p6 
D)  [Kr]5s25p6 
E)  [Kr]5s25d105p6

Question 7

How many of the following elements have one unpaired electron in the ground state? B Al S Cl

Accepted Answer

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

Question 8

Using the periodic table, identify the element with the following exception electron configuration: [Kr]5s14d7

Accepted Answer

A)  Mo 
B)  Tc 
C)  Rh 
D)  Ru 
E)  Pd 
A)  Mo 
B)  Tc 
C)  Rh 
D)  Ru 
E)  Pd

Question 9

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 10

How many valence electrons do the noble gases possess?

Accepted Answer

A)  1 
B)  3 
C)  7 
D)  6 
E)  8 
A)  1 
B)  3 
C)  7 
D)  6 
E)  8

Question 11

How many valence electrons does an atom of Cu possess?

Accepted Answer

A)  2 
B)  9 
C)  11 
D)  3 
E)  1 
A)  2 
B)  9 
C)  11 
D)  3 
E)  1

Question 12

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 13

Identify the states of the halogens at room temperature.

Accepted Answer

A)  Fluorine, chlorine, bromine, and iodine are gases. 
B)  Fluorine, chlorine, and bromine are gases; iodine is a solid. 
C)  All are gases. 
D)  Fluorine is a gas, chlorine and bromine are liquids, and iodine is a solid. 
E)  Fluorine and chlorine are gases, bromine is a liquid, and iodine is a solid. 
A)  Fluorine, chlorine, bromine, and iodine are gases. 
B)  Fluorine, chlorine, and bromine are gases; iodine is a solid. 
C)  All are gases. 
D)  Fluorine is a gas, chlorine and bromine are liquids, and iodine is a solid. 
E)  Fluorine and chlorine are gases, bromine is a liquid, and iodine is a solid.

Question 14

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

Accepted Answer

A)  [Ar]4s23d7 
B)  [Ar]4s23d9 
C)  [Ar]4s23d5 
D)  [Ar]3d9 
E)  [Ar]4s23d3 
A)  [Ar]4s23d7 
B)  [Ar]4s23d9 
C)  [Ar]4s23d5 
D)  [Ar]3d9 
E)  [Ar]4s23d3

Question 15

What is the effective nuclear charge experienced by the valence electrons of Sc? (Hint: Use Slater's rule.)

Accepted Answer

A)  2.85 
B)  20 
C)  17.5 
D)  3.00 
E)  3.15 
A)  2.85 
B)  20 
C)  17.5 
D)  3.00 
E)  3.15

Question 16

Using the periodic table, identify the element with the following exception electron configuration: [Kr]5s14d5

Accepted Answer

A)  Zr 
B)  Ni 
C)  Re 
D)  Tc 
E)  Mo 
A)  Zr 
B)  Ni 
C)  Re 
D)  Tc 
E)  Mo

Question 17

Which reaction below represents the second ionization of Sr?

Accepted Answer

A)  Sr(g) → Sr⁺(g) + e⁻ 
B)  Sr2⁺(g) + e⁻ → Sr⁺(g) 
C)  Sr⁺(g) + e⁻ → Sr(g) 
D)  Sr⁻(g) + e⁻ → Sr2⁻(g) 
E)  Sr⁺(g) → Sr2⁺(g) + e⁻ 
A)  Sr(g) → Sr⁺(g) + e⁻ 
B)  Sr2⁺(g) + e⁻ → Sr⁺(g) 
C)  Sr⁺(g) + e⁻ → Sr(g) 
D)  Sr⁻(g) + e⁻ → Sr2⁻(g) 
E)  Sr⁺(g) → Sr2⁺(g) + e⁻

Question 18

Identify the number of valence electrons for O.

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  4 
E)  6 
A)  0 
B)  1 
C)  2 
D)  4 
E)  6

Question 19

Place the following ions in order of increasing radius. Br⁻ Na⁺ Rb⁺

Accepted Answer

A)  Br⁻ < Rb⁺ < Na⁺ 
B)  Na⁺ < Rb⁺ < Br⁻ 
C)  Rb⁺ < Br⁻ < Na⁺ 
D)  Br⁻ < Na⁺ < Rb⁺ 
E)  Rb⁺ < Na⁺ < Br⁻ 
A)  Br⁻ < Rb⁺ < Na⁺ 
B)  Na⁺ < Rb⁺ < Br⁻ 
C)  Rb⁺ < Br⁻ < Na⁺ 
D)  Br⁻ < Na⁺ < Rb⁺ 
E)  Rb⁺ < Na⁺ < Br⁻

Question 20

What was the predicted formula for the chloride of eka-silicon (germanium)?

Accepted Answer

A)  XCl 
B)  XCl2 
C)  XCl3 
D)  XCl4 
A)  XCl 
B)  XCl2 
C)  XCl3 
D)  XCl4

Exam 8: Periodic Properties of the Elements

Identify a characteristic of halogens.

What was the predicted formula for the chloride of eka-aluminum (gallium)?

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

Define ionization energy.

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

Identify the ground-state electron configuration for I.

How many of the following elements have one unpaired electron in the ground state? B Al S Cl

Using the periodic table, identify the element with the following exception electron configuration: [Kr]5s14d7

How many valence electrons does a neutral tellurium atom have?

How many valence electrons do the noble gases possess?

How many valence electrons does an atom of Cu possess?

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

Identify the states of the halogens at room temperature.

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

What is the effective nuclear charge experienced by the valence electrons of Sc? (Hint: Use Slater's rule.)

Using the periodic table, identify the element with the following exception electron configuration: [Kr]5s14d5

Which reaction below represents the second ionization of Sr?

Identify the number of valence electrons for O.

Place the following ions in order of increasing radius. Br⁻ Na⁺ Rb⁺

What was the predicted formula for the chloride of eka-silicon (germanium)?

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

Using the periodic table, identify the element with the following exception electron configuration: [Kr]5s¹4d⁷

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

Using the periodic table, identify the element with the following exception electron configuration: [Kr]5s¹4d⁵