Question 1

In which of the following species does the central atom violate the octet rule?

Accepted Answer

A)  CH4 
B)  SF4 
C)  PCl4+ 
D)  CCl3+ 
E)  NH3 
A)  CH4 
B)  SF4 
C)  PCl4+ 
D)  CCl3+ 
E)  NH3

Question 2

If an element is bonded to 4 other atoms and has a formal charge of +1, what group must the element be in?

Accepted Answer

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

Question 3

The number of resonance structures for the sulfur dioxide molecule that satisfy the octet rule is

Accepted Answer

A)  1. 
B)  2. 
C)  3. 
D)  4. 
E)  none of these 
A)  1. 
B)  2. 
C)  3. 
D)  4. 
E)  none of these

Question 4

In the resonance structure of sulfur dioxide, the sulfur atom has one single bond and one double bond. What is the formal charge of this sulfur atom?

Accepted Answer

A)  0 
B)  +1 
C)  -1 
D)  +2 
E)  -2 
A)  0 
B)  +1 
C)  -1 
D)  +2 
E)  -2

Question 5

The Lewis dot symbol consists of the symbol for the element surrounded by dot(s). What does the dot or dots represent?

Accepted Answer

A)  Electron configuration 
B)  Valence electrons 
C)  Atomic number 
D)  Atomic mass 
E)  Core electrons 
A)  Electron configuration 
B)  Valence electrons 
C)  Atomic number 
D)  Atomic mass 
E)  Core electrons

Question 6

The number of dots in the Lewis dot symbol for a main group element is the same as the ________ ________.

Accepted Answer

group numb

Question 7

Which one of the following Lewis structures is definitely incorrect?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 8

In the Lewis dot symbol, the element symbol represents the ________ and the dots represent the ________.

Accepted Answer

core elect

Question 9

Select the correct Lewis structure for nitrogen trifluoride, NF3.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 10

Select the element whose Lewis symbol is correct.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 11

The Lewis structure for a chlorate ion, ClO3-, should show ________ single bond(s), ________ double bond(s), and ________ lone pair(s).

Accepted Answer

A)  1, 2, 7 
B)  3, 0, 9 
C)  2, 1, 9 
D)  3, 0, 10 
E)  1, 2, 8 
A)  1, 2, 7 
B)  3, 0, 9 
C)  2, 1, 9 
D)  3, 0, 10 
E)  1, 2, 8

Question 12

What name is given to the sharing of electrons between two atoms?

Accepted Answer

The answer of What name is given to the sharing...

Question 13

How many total resonance structures can be drawn for the sulfate ion, SO42-?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6 
A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Question 14

Which of the following is an ionic compound?

Accepted Answer

A)  H2S 
B)  NH3 
C)  I2 
D)  KI 
E)  CCl4 
A)  H2S 
B)  NH3 
C)  I2 
D)  KI 
E)  CCl4

Question 15

The Lewis dot symbol for the a lead atom is

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 16

In the following Lewis structure for ClO3F, chlorine has a formal charge of ________ and an oxidation number of ________.

Accepted Answer

A)  7, 7 
B)  7, -1 
C)  1, 1 
D)  1, -1 
E)  1, 7 
A)  7, 7 
B)  7, -1 
C)  1, 1 
D)  1, -1 
E)  1, 7

Question 17

What is the formal charge on phosphorus in a Lewis structure for the phosphate ion that satisfies the octet rule?

Accepted Answer

A)  -2 
B)  -1 
C)  0 
D)  +1 
E)  +2 
A)  -2 
B)  -1 
C)  0 
D)  +1 
E)  +2

Question 18

In the Lewis structure of the iodate ion, IO3-, that satisfies the octet rule, the formal charge on the central iodine atom is

Accepted Answer

A)  +2. 
B)  +1. 
C)  0. 
D)  -1. 
E)  -2. 
A)  +2. 
B)  +1. 
C)  0. 
D)  -1. 
E)  -2.

Question 19

Which of these compounds is most likely to be ionic?

Accepted Answer

A)  GaAs 
B)  SrBr2 
C)  NO2 
D)  CBr4 
E)  H2O 
A)  GaAs 
B)  SrBr2 
C)  NO2 
D)  CBr4 
E)  H2O

Question 20

Which of the following contains ionic bonding?

Accepted Answer

A)  CO 
B)  SrF2 
C)  Al 
D)  OCl2 
E)  HCl 
A)  CO 
B)  SrF2 
C)  Al 
D)  OCl2 
E)  HCl

Exam 8: Chemical Bonding I: Basic Concepts

In which of the following species does the central atom violate the octet rule?

If an element is bonded to 4 other atoms and has a formal charge of +1, what group must the element be in?

The number of resonance structures for the sulfur dioxide molecule that satisfy the octet rule is

In the resonance structure of sulfur dioxide, the sulfur atom has one single bond and one double bond. What is the formal charge of this sulfur atom?

The Lewis dot symbol consists of the symbol for the element surrounded by dot(s). What does the dot or dots represent?

The number of dots in the Lewis dot symbol for a main group element is the same as the ________ ________.

Which one of the following Lewis structures is definitely incorrect?

In the Lewis dot symbol, the element symbol represents the ________ and the dots represent the ________.

Select the correct Lewis structure for nitrogen trifluoride, NF3.

Select the element whose Lewis symbol is correct.

The Lewis structure for a chlorate ion, ClO3-, should show ________ single bond(s), ________ double bond(s), and ________ lone pair(s).

What name is given to the sharing of electrons between two atoms?

How many total resonance structures can be drawn for the sulfate ion, SO42-?

Which of the following is an ionic compound?

The Lewis dot symbol for the a lead atom is

In the following Lewis structure for ClO3F, chlorine has a formal charge of ________ and an oxidation number of ________.

What is the formal charge on phosphorus in a Lewis structure for the phosphate ion that satisfies the octet rule?

In the Lewis structure of the iodate ion, IO3-, that satisfies the octet rule, the formal charge on the central iodine atom is

Which of these compounds is most likely to be ionic?

Which of the following contains ionic bonding?

Chemistry: the Central Science

Atoms, Molecules, and Ions

Stoichiometry: Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy, Free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

The number of dots in the Lewis dot symbol for a main group element is the same as the .

In the Lewis dot symbol, the element symbol represents the and the dots represent the .

Select the correct Lewis structure for nitrogen trifluoride, NF₃.

The Lewis structure for a chlorate ion, ClO₃^-, should show single bond(s), double bond(s), and lone pair(s).

How many total resonance structures can be drawn for the sulfate ion, SO₄^2-?

In the following Lewis structure for ClO₃F, chlorine has a formal charge of and an oxidation number of .

In the Lewis structure of the iodate ion, IO₃^-, that satisfies the octet rule, the formal charge on the central iodine atom is