Question 1

Which one of the following elements is a transition element?

Accepted Answer

A) antimony 
B) barium 
C) chromium 
D) potassium 
E) selenium 
A) antimony 
B) barium 
C) chromium 
D) potassium 
E) selenium

Question 2

How many 3d electrons does the manganese(II)ion, Mn2+, have?

Accepted Answer

A) 3 
B) 4 
C) 5 
D) 6 
E) 7 
A) 3 
B) 4 
C) 5 
D) 6 
E) 7

Question 3

Which of the elements listed below has the highest first ionization energy?

Accepted Answer

A) C 
B) Ge 
C) P 
D) O 
E) Se 
A) C 
B) Ge 
C) P 
D) O 
E) Se

Question 4

Which of the following is the electron configuration of the iron(III)ion?

Accepted Answer

A) [Ar]3d5 
B) [Ar]4s13d5 
C) [Ar]4s23d3 
D) [Ar]3d6 
E) [Ar]4s23d9 
A) [Ar]3d5 
B) [Ar]4s13d5 
C) [Ar]4s23d3 
D) [Ar]3d6 
E) [Ar]4s23d9

Question 5

Since arsenic is a nonmetal, As2O3 is expected to be a/an _____ oxide.

Accepted Answer

A) acidic 
B) ionic 
C) amphoteric 
D) neutral 
E) basic 
A) acidic 
B) ionic 
C) amphoteric 
D) neutral 
E) basic

Question 6

In what row and group of the periodic table would you find the element with the electron configuration [Kr]5s24d105p2?

Accepted Answer

A) row 4, group 4A 
B) row 4, group 5A 
C) row 5, group 4A 
D) row 5, group 5A 
E) none of the above 
A) row 4, group 4A 
B) row 4, group 5A 
C) row 5, group 4A 
D) row 5, group 5A 
E) none of the above

Question 7

Which one of the following is not isoelectronic with the others: Br-, Rb+, Se2-, Sr2+, Te2-?

Accepted Answer

A) Br- 
B) Rb+ 
C) Se2- 
D) Sr2+ 
E) Te2- 
A) Br- 
B) Rb+ 
C) Se2- 
D) Sr2+ 
E) Te2-

Question 8

The electron configuration of a copper(I)ion is

Accepted Answer

A) [Ar]4s23d8 
B) [Ar]4s13d9 
C) [Ar]3d10 
D) [Ar]4s23d64p2 
E) [Kr] 
A) [Ar]4s23d8 
B) [Ar]4s13d9 
C) [Ar]3d10 
D) [Ar]4s23d64p2 
E) [Kr]

Question 9

Consider the element with the electron configuration [Kr]5s24d7. This element is

Accepted Answer

A) a representative element. 
B) a transition metal. 
C) a nonmetal. 
D) an actinide element. 
E) a noble gas. 
A) a representative element. 
B) a transition metal. 
C) a nonmetal. 
D) an actinide element. 
E) a noble gas.

Question 10

Which of the following elements has the greatest electron affinity (largest positive value)?

Accepted Answer

A) K 
B) Br 
C) As 
D) Ar 
E) I 
A) K 
B) Br 
C) As 
D) Ar 
E) I

Question 11

Amphoteric oxides exhibit both acidic and basic properties.

Accepted Answer

A) True 
 B)False

Question 12

The general electron configuration for atoms of all elements in Group 5A is

Accepted Answer

A) ns2np6 
B) ns2np5 
C) ns2np4 
D) ns2np3 
E) ns2np1 
A) ns2np6 
B) ns2np5 
C) ns2np4 
D) ns2np3 
E) ns2np1

Question 13

Briefly explain why the atomic radius decreases within a period when moving from left to right.

Accepted Answer

Effective nuclear charge incre

Question 14

Write the ground-state electron configuration for K+.

Accepted Answer

Question 15

The radii of ions are always smaller than the radii of the corresponding atoms of the same element.

Accepted Answer

A) True 
 B)False

Question 16

Which one of the following is not isoelectronic with Kr?

Accepted Answer

A) As3+ 
B) Se2- 
C) Rb+ 
D) Sr2+ 
E) Br- 
A) As3+ 
B) Se2- 
C) Rb+ 
D) Sr2+ 
E) Br-

Question 17

Write the ground-state electron configuration for Ni2+.

Accepted Answer

Question 18

Write the ground-state electron configuration for I-.

Accepted Answer

Question 19

Which of the elements listed below has the smallest first ionization energy?

Accepted Answer

A) C 
B) Ge 
C) P 
D) O 
E) Se 
A) C 
B) Ge 
C) P 
D) O 
E) Se

Exam 8: The Periodic Table

Which one of the following elements is a transition element?

How many 3d electrons does the manganese(II)ion, Mn2+, have?

Which of the elements listed below has the highest first ionization energy?

Which of the following is the electron configuration of the iron(III)ion?

Since arsenic is a nonmetal, As2O3 is expected to be a/an _____ oxide.

In what row and group of the periodic table would you find the element with the electron configuration [Kr]5s24d105p2?

Which one of the following is not isoelectronic with the others: Br-, Rb+, Se2-, Sr2+, Te2-?

The electron configuration of a copper(I)ion is

Consider the element with the electron configuration [Kr]5s24d7. This element is

Which of the following elements has the greatest electron affinity (largest positive value)?

Amphoteric oxides exhibit both acidic and basic properties.

The general electron configuration for atoms of all elements in Group 5A is

Briefly explain why the atomic radius decreases within a period when moving from left to right.

Write the ground-state electron configuration for K+.

The radii of ions are always smaller than the radii of the corresponding atoms of the same element.

Which one of the following is not isoelectronic with Kr?

Write the ground-state electron configuration for Ni2+.

Write the ground-state electron configuration for I-.

Which of the elements listed below has the smallest first ionization energy?

Introduction

Atoms, Molecules, and Ions

Stoichiometry

Reactions in Aqueous Solution

Gases

Energy Relationships in Chemical Reactions

The Electronic Structure of Atoms

Chemical Bonding I: the Covalent Bond

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Introduction to Organic Chemistry

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Thermodynamics

Redox Reactions and Electrochemistry

The Chemistry of Coordination Compounds

Nuclear Chemistry

Organic Polymerssynthetic and Natural

Filters

How many 3d electrons does the manganese(II)ion, Mn²⁺, have?

Since arsenic is a nonmetal, As₂O₃ is expected to be a/an _____ oxide.

In what row and group of the periodic table would you find the element with the electron configuration [Kr]5s²4d¹⁰5p²?

Which one of the following is not isoelectronic with the others: Br^-, Rb⁺, Se^2-, Sr²⁺, Te^2-?

Consider the element with the electron configuration [Kr]5s²4d⁷. This element is

Write the ground-state electron configuration for K⁺.

Write the ground-state electron configuration for Ni²⁺.

Write the ground-state electron configuration for I^-.