Question 1

Why do the group 5A elements have relatively small electron affinities compared to the neighboring nonmetals in the corresponding rows?

Accepted Answer

Because the np orbitals are ha

Question 2

The representative elements are those with unfilled energy levels in which the "last electron" was added to

Accepted Answer

A) an s orbital. 
B) an s or p orbital. 
C) a d orbital. 
D) a p or d orbital. 
E) an f orbital. 
A) an s orbital. 
B) an s or p orbital. 
C) a d orbital. 
D) a p or d orbital. 
E) an f orbital.

Question 3

Which of the following elements behaves chemically similarly to oxygen?

Accepted Answer

A) magnesium 
B) sodium 
C) sulfur 
D) chlorine 
E) iron
F)beryllium 
A) magnesium 
B) sodium 
C) sulfur 
D) chlorine 
E) iron
F)beryllium

Question 4

Which of the following elements has the smallest first ionization energy?

Accepted Answer

A) Cl 
B) Na 
C) Be 
D) K 
E) As 
A) Cl 
B) Na 
C) Be 
D) K 
E) As

Question 5

Which one of the following ions has the largest radius?

Accepted Answer

A) Cl- 
B) K+ 
C) S2- 
D) Na+ 
E) O2- 
A) Cl- 
B) K+ 
C) S2- 
D) Na+ 
E) O2-

Question 6

Consider the following reaction 2A + 3F2$\rarr$2AF3.
What is a reasonable guess for the identity element A?

Accepted Answer

Aluminum, or other e

Question 7

Consider the following reaction: 3Li + Z $\rarr$ Li3Z. What is the formula for the compound if we substitute sodium for lithium?

Accepted Answer

A) NaZ 
B) Na2Z 
C) NaZ2 
D) Na3Z 
E) NaZ3 
A) NaZ 
B) Na2Z 
C) NaZ2 
D) Na3Z 
E) NaZ3

Question 8

Which element will display an unusually large jump in ionization energy values between I3 and I4, its third and fourth ionization energies?

Accepted Answer

A) Na 
B) Mg 
C) Al 
D) Si 
E) P 
A) Na 
B) Mg 
C) Al 
D) Si 
E) P

Question 9

Which of the following is the electron configuration for the bromide ion?

Accepted Answer

A) [Ar] 
B) [Ar]4s23d104p7 
C) [Kr] 
D) [Kr]5s24d105p7 
E) [Xe] 
A) [Ar] 
B) [Ar]4s23d104p7 
C) [Kr] 
D) [Kr]5s24d105p7 
E) [Xe]

Question 10

Why is the Mg2+ ion smaller than F-, even though they are isoelectronic?

Accepted Answer

Mg²⁺ has a h

Question 11

Which of the following is a basic oxide?

Accepted Answer

A) NO2 
B) H2O 
C) Na2O 
D) SnO 
E) SO2 
A) NO2 
B) H2O 
C) Na2O 
D) SnO 
E) SO2

Question 12

Which ion is isoelectronic with Ar?

Accepted Answer

A) Fe2+ 
B) F- 
C) Br- 
D) Ga3+ 
E) Ca2+ 
A) Fe2+ 
B) F- 
C) Br- 
D) Ga3+ 
E) Ca2+

Question 13

How many valence electrons does an oxygen atom have?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 7 
E) 8 
A) 2 
B) 4 
C) 6 
D) 7 
E) 8

Question 14

What is the charge on the monatomic ion of nitrogen, the nitride ion?

Accepted Answer

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

Question 15

Which of the following elements has the greatest metallic character?

Accepted Answer

A) Ca 
B) Mg 
C) Ba 
D) As 
E) Se 
A) Ca 
B) Mg 
C) Ba 
D) As 
E) Se

Question 16

The second ionization energy of Mg is ________ than its first ionization energy, and is __________ than the second ionization energy of Na.

Accepted Answer

A) higher, higher 
B) lower, higher 
C) higher, lower 
D) lower, lower 
A) higher, higher 
B) lower, higher 
C) higher, lower 
D) lower, lower

Question 17

Which of the following is the general electron configuration for the outermost electrons of elements in the alkaline earth group?

Accepted Answer

A) ns1 
B) ns2 
C) ns2np4 
D) ns2np5 
E) ns2np6(n -1)d6 
A) ns1 
B) ns2 
C) ns2np4 
D) ns2np5 
E) ns2np6(n -1)d6

Question 18

Which of the elements listed below has the greatest atomic radius?

Accepted Answer

A) B 
B) Al 
C) S 
D) P 
E) Si 
A) B 
B) Al 
C) S 
D) P 
E) Si

Question 19

Consider the following reaction: 3Li + Z $\rarr$ Li3Z.
What is a reasonable guess for the identity of element Z?

Accepted Answer

Nitrogen, or other e

Question 20

The elements in Group 7A are known by what name?

Accepted Answer

A) transition metals 
B) halogens 
C) alkali metals 
D) alkaline earth metals 
E) noble gases 
A) transition metals 
B) halogens 
C) alkali metals 
D) alkaline earth metals 
E) noble gases

Exam 8: The Periodic Table

Why do the group 5A elements have relatively small electron affinities compared to the neighboring nonmetals in the corresponding rows?

The representative elements are those with unfilled energy levels in which the "last electron" was added to

Which of the following elements behaves chemically similarly to oxygen?

Which of the following elements has the smallest first ionization energy?

Which one of the following ions has the largest radius?

Consider the following reaction 2A + 3F2 →\rarr→ 2AF3. What is a reasonable guess for the identity element A?

Consider the following reaction: 3Li + Z →\rarr→ Li3Z. What is the formula for the compound if we substitute sodium for lithium?

Which element will display an unusually large jump in ionization energy values between I3 and I4, its third and fourth ionization energies?

Which of the following is the electron configuration for the bromide ion?

Why is the Mg2+ ion smaller than F-, even though they are isoelectronic?

Which of the following is a basic oxide?

Which ion is isoelectronic with Ar?

How many valence electrons does an oxygen atom have?

What is the charge on the monatomic ion of nitrogen, the nitride ion?

Which of the following elements has the greatest metallic character?

The second ionization energy of Mg is ________ than its first ionization energy, and is __________ than the second ionization energy of Na.

Which of the following is the general electron configuration for the outermost electrons of elements in the alkaline earth group?

Which of the elements listed below has the greatest atomic radius?

Consider the following reaction: 3Li + Z →\rarr→ Li3Z. What is a reasonable guess for the identity of element Z?

The elements in Group 7A are known by what name?

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

Consider the following reaction 2A + 3F₂ $\rarr$ 2AF₃. What is a reasonable guess for the identity element A?

Consider the following reaction: 3Li + Z $\rarr$ Li₃Z. What is the formula for the compound if we substitute sodium for lithium?

Which element will display an unusually large jump in ionization energy values between I₃ and I₄, its third and fourth ionization energies?

Why is the Mg²⁺ ion smaller than F^-, even though they are isoelectronic?

The second ionization energy of Mg is than its first ionization energy, and is __ than the second ionization energy of Na.

Consider the following reaction: 3Li + Z $\rarr$ Li₃Z. What is a reasonable guess for the identity of element Z?