Question 1

The electron affinity is opposite to the ionization energy.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following has the greatest number of unpaired electrons?

Accepted Answer

A) Cr2+ 
B) Ti3+ 
C) Co2+ 
D) Ni 
A) Cr2+ 
B) Ti3+ 
C) Co2+ 
D) Ni

Question 3

List in order of increasing size: K+,Se2-,Cl-,Na+,S2-.

Accepted Answer

A) Cl- 2- + + 2-  
B) Na+ + - 2- 2-  
C) S2- + - 2- K+  
D) Cl- 2- + + 2-  
E) K+ + - 2- 2-  
A) Cl- 2- + + 2-  
B) Na+ + - 2- 2-  
C) S2- + - 2- K+  
D) Cl- 2- + + 2-  
E) K+ + - 2- 2-

Question 4

Why was Moseley so sure from his X-ray work that there were no other undiscovered elements besides the three that he predicted in the range of atomic numbers 13-79?

Accepted Answer

A) The rows on the periodic table were filled. 
B) The columns of the periodic table were full. 
C) All of the possible atomic weights were assigned. 
D) All of the integer atomic numbers were assigned. 
E) Mendeleev didn't predict any more. 
A) The rows on the periodic table were filled. 
B) The columns of the periodic table were full. 
C) All of the possible atomic weights were assigned. 
D) All of the integer atomic numbers were assigned. 
E) Mendeleev didn't predict any more.

Question 5

Plutonium is among a group of elements referred to as:

Accepted Answer

A) actinides 
B) alkalides 
C) chalcocides 
D) halides 
E) lanthanides 
A) actinides 
B) alkalides 
C) chalcocides 
D) halides 
E) lanthanides

Question 6

List in order of increasing size: Cl-,Ar,K+,S2-,Ca2+.

Accepted Answer

A) Ca2+ + - 2-  
B) S2- - + 2+  
C) Ca2+ 2- + -  
D) Cl- + 2- 2+  
E) K+ 2- - 2+  
A) Ca2+ + - 2-  
B) S2- - + 2+  
C) Ca2+ 2- + -  
D) Cl- + 2- 2+  
E) K+ 2- - 2+

Question 7

Which of the following has the highest first ionization potential: Sb,I,In,Xe,Rb?

Accepted Answer

A) Sb 
B) I 
C) In 
D) Xe 
E) Rb 
A) Sb 
B) I 
C) In 
D) Xe 
E) Rb

Question 8

Which of the following species is most likely to be diamagnetic?

Accepted Answer

A) Fe 
B) I 
C) MnS1U1P1+ S1S1P0 
D) WS1U1P13+S1S1P0 
E) ZnS1U1P12+S1S1P0 
A) Fe 
B) I 
C) MnS1U1P1+ S1S1P0 
D) WS1U1P13+S1S1P0 
E) ZnS1U1P12+S1S1P0

Question 9

Why is the electron affinity slightly positive for some of the group 2 elements?

Accepted Answer

A) The added electron would have to go into a new shell. 
B) The added electron would have to be added into the half-filled p subshell. 
C) The added electron would have to be added into the p subshell. 
D) The groups 2 elements are diatomic elements. 
E) Electrons can't be added to metals. 
A) The added electron would have to go into a new shell. 
B) The added electron would have to be added into the half-filled p subshell. 
C) The added electron would have to be added into the p subshell. 
D) The groups 2 elements are diatomic elements. 
E) Electrons can't be added to metals.

Question 10

Which species is diamagnetic?

Accepted Answer

A) atomic sodium 
B) atomic fluorine 
C) iron(III)ion 
D) calcium(II)ion 
E) cobalt(II)ion 
A) atomic sodium 
B) atomic fluorine 
C) iron(III)ion 
D) calcium(II)ion 
E) cobalt(II)ion

Question 11

The number of valence electrons for atomic potassium is ________.

Accepted Answer

A) 1 
B) 5 
C) 6 
D) 15 
E) 19 
A) 1 
B) 5 
C) 6 
D) 15 
E) 19

Question 12

Arrange the following elements in order of increasing ionization energy: Cs,Sc,Mn.

Accepted Answer

A) Sc < Mn < Cs 
B) Sc < Cs < Mn 
C) Cs < Mn < Sc 
D) Cs < Sc < Mn 
E) Mn < Cs < Sc 
A) Sc < Mn < Cs 
B) Sc < Cs < Mn 
C) Cs < Mn < Sc 
D) Cs < Sc < Mn 
E) Mn < Cs < Sc

Question 13

Which of the following has the largest radius?

Accepted Answer

A) ClS1U1P1-S1S1P0 
B) Ar 
C) ScS1U1P13+S1S1P0 
D) KS1U1P1+ S1S1P0 
E) PS1U1P13- S1S1P0 
A) ClS1U1P1-S1S1P0 
B) Ar 
C) ScS1U1P13+S1S1P0 
D) KS1U1P1+ S1S1P0 
E) PS1U1P13- S1S1P0

Question 14

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

Accepted Answer

A) magnesium 
B) potassium 
C) aluminum 
D) sodium 
A) magnesium 
B) potassium 
C) aluminum 
D) sodium

Question 15

Elements in the first two groups are part of the main-group elements along with which of the following groups?

Accepted Answer

A) d-block elements 
B) s-block elements 
C) actinides 
D) lanthanides 
E) p-block elements 
A) d-block elements 
B) s-block elements 
C) actinides 
D) lanthanides 
E) p-block elements

Question 16

If the formula of an oxide is X2O3,what is the formula of the chloride of X?

Accepted Answer

A) XCl 
B) X3Cl 
C) XCl3  
D) XCl6  
E) X2Cl3  
A) XCl 
B) X3Cl 
C) XCl3  
D) XCl6  
E) X2Cl3

Question 17

Most transition elements form monatomic ions that are not:

Accepted Answer

A) isoelectronic with any other cations 
B) isoelectronic with any noble gas 
C) isoelectronic with any neutral atom 
D) isoelectronic with any other species 
E) isoelectronic with any other transition metal ion 
A) isoelectronic with any other cations 
B) isoelectronic with any noble gas 
C) isoelectronic with any neutral atom 
D) isoelectronic with any other species 
E) isoelectronic with any other transition metal ion

Question 18

The ionization energy is the energy required for a gaseous atom to lose an electron.

Accepted Answer

A) True 
 B)False

Question 19

Ions always adopt the electron configuration of a noble gas.

Accepted Answer

A) True 
 B)False

Question 20

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

Accepted Answer

A) K 
B) As 
C) Rb 
D) Sb 
A) K 
B) As 
C) Rb 
D) Sb

Exam 9: The Periodic Table and Some Atomic Properties

The electron affinity is opposite to the ionization energy.

Which of the following has the greatest number of unpaired electrons?

List in order of increasing size: K+,Se2-,Cl-,Na+,S2-.

Why was Moseley so sure from his X-ray work that there were no other undiscovered elements besides the three that he predicted in the range of atomic numbers 13-79?

Plutonium is among a group of elements referred to as:

List in order of increasing size: Cl-,Ar,K+,S2-,Ca2+.

Which of the following has the highest first ionization potential: Sb,I,In,Xe,Rb?

Which of the following species is most likely to be diamagnetic?

Why is the electron affinity slightly positive for some of the group 2 elements?

Which species is diamagnetic?

The number of valence electrons for atomic potassium is ________.

Arrange the following elements in order of increasing ionization energy: Cs,Sc,Mn.

Which of the following has the largest radius?

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

Elements in the first two groups are part of the main-group elements along with which of the following groups?

If the formula of an oxide is X2O3,what is the formula of the chloride of X?

Most transition elements form monatomic ions that are not:

The ionization energy is the energy required for a gaseous atom to lose an electron.

Ions always adopt the electron configuration of a noble gas.

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

Matter: Its Properties and Measurement

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Gases

Thermochemistry

Electrons in Atoms

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Valence Bond and Molecular Orbital Theories

Intermolecular Forces: Liquids and Solids

Spontaneous Change: Entropy and Gibbs Energy

Solutions and Their Physical Properties

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acidbase Equilibria

Solubility and Complex-Ion Equilibria

Electrochemistry

Chemical Kinetics

Chemistry of the Main-Group Elements I: Groups 1,2,13,and 14

Chemistry of the Main-Group Elements Ii: Groups 18,17,16,15,and Hydrogen

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

Filters

List in order of increasing size: K⁺,Se^2-,Cl^-,Na⁺,S^2-.

List in order of increasing size: Cl^-,Ar,K⁺,S^2-,Ca^2+.

If the formula of an oxide is X₂O₃,what is the formula of the chloride of X?