Question 1

Describe in brief how electronegativity values can be used to predict the percent ionic character of a bond between two atoms.

Accepted Answer

Take the electronegativity difference (Δ...

Question 2

What types of elements undergo ionic bonding?

Accepted Answer

A)   two metals
B)   a nonmetal and a metal
C)   two nonmetals
D)   two Group 1A elements
E)   two noble gasesF) B) and D)
G) C) and D)

Question 3

Select the compound with the highest (i.e., most negative)  lattice energy.

Accepted Answer

A)   CaS(s) 
B)   BaO(s) 
C)   NaI(s) 
D)   LiBr(s) 
E)   MgO(s) F) C) and D)
G) None of the above

Question 4

How many dots does the Lewis dot symbol for oxygen have around it?

Accepted Answer

A)   4
B)   2
C)   6
D)   3
E)   8F) None of the above
G) C) and D)

Question 5

Select the correct Lewis structure for NOCl, a reactive material used as an ionizing solvent.

Accepted Answer

A)   
B)   
C)   
D)   
E)   None of these choices is correct.F) A) and E)
G) C) and E)

Question 6

Ionic compounds tend to form between metals and nonmetals when electrons are transferred from an element with high ionization energy (metal) to an element with a low electron affinity (nonmetal).

Accepted Answer

A) True 
 B)False

Question 7

A(n) ________ is a representation of covalent bonding in which shared electron pairs are shown either as dashes or as pairs of dots between two atoms and unshared electrons are shown as dots around the individual atoms.

Accepted Answer

The answer of A(n) ________ is a representation of covalent...

Question 8

How many lone pairs of electrons need to be added to complete this Lewis structure?

Accepted Answer

A)   5
B)   8
C)   6
D)   1
E)   16F) B) and E)
G) A) and D)

Question 9

The Lewis structure for CS2 is:

Accepted Answer

A)   2 is: 
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B)     
C)     
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B)   2 is: 
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F) B) and C)

Question 10

What is the electrostatic attraction called that holds oppositely charged ions together in a compound?

Accepted Answer

The answer of What is the electrostatic attraction called that...

Question 11

A double bond cannot exist between a carbon atom and an oxygen atom.

Accepted Answer

A) True 
 B)False

Question 12

A triple bond cannot exist between a carbon atom and a hydrogen atom.

Accepted Answer

A) True 
 B)False

Question 13

The formal charge on Cl in the structure shown for the perchlorate ion is ________.

Accepted Answer

A)   -2
B)   -1
C)   0
D)   +1
E)   +2F) A) and C)
G) C) and D)

Question 14

Only valence electrons are shown in the Lewis structure held together by covalent bonds.

Accepted Answer

A) True 
 B)False

Question 15

Select the compound with the lowest (i.e., least negative)  lattice energy.

Accepted Answer

A)   CsBr(s) 
B)   NaCl(s) 
C)   SrO(s) 
D)   CaO(s) 
E)   KBr(s) F) A) and B)
G) B) and E)

Question 16

Which of these compounds is most likely to be ionic?

Accepted Answer

A)   KF
B)   CCl4
C)   CS2
D)   CO2
E)   IClF) B) and C)
G) A) and C)

Question 17

A triple bond arises when two atoms share ________ pairs of electrons.

Accepted Answer

The answer of A triple bond arises when two atoms...

Question 18

How many dots does the Lewis dot symbol for magnesium have around it?

Accepted Answer

A)   1
B)   2
C)   0
D)   3
E)   12F) B) and E)
G) B) and D)

Question 19

Which of these compounds is most likely to be covalent?

Accepted Answer

A)   CsOH
B)   NF3
C)   Sr(NO3) 2
D)   CaO
E)   LiFF) All of the above
G) A) and B)

Question 20

Which of these ionic solids would have the largest lattice energy?

Accepted Answer

A)   NaCl
B)   NaF
C)   CaBr2
D)   CsI
E)   CaCl2F) B) and D)
G) A) and E)

Exam 8: Chemical Bonding I: Basic Concepts

A triple bond arises when two atoms share ________ pairs of electrons.

Correct AnswerverifiedShow Answer

Select the correct Lewis structure for NOCl, a reactive material used as an ionizing solvent.

Correct AnswerverifiedShow Answer

Which of these compounds is most likely to be covalent?

Correct AnswerverifiedShow Answer

Describe in brief how electronegativity values can be used to predict the percent ionic character of a bond between two atoms.

Correct AnswerverifiedTake the electronegativity difference (Δ...View AnswerShow Answer

What types of elements undergo ionic bonding?

Correct AnswerverifiedShow Answer

The Lewis structure for CS2 is:

Correct AnswerverifiedShow Answer

Select the compound with the lowest (i.e., least negative) lattice energy.

Correct AnswerverifiedShow Answer

Ionic compounds tend to form between metals and nonmetals when electrons are transferred from an element with high ionization energy (metal) to an element with a low electron affinity (nonmetal).

Correct AnswerverifiedShow Answer

How many dots does the Lewis dot symbol for oxygen have around it?

Correct AnswerverifiedShow Answer

The formal charge on Cl in the structure shown for the perchlorate ion is ________.

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A triple bond cannot exist between a carbon atom and a hydrogen atom.

Correct AnswerverifiedShow Answer

How many dots does the Lewis dot symbol for magnesium have around it?

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Only valence electrons are shown in the Lewis structure held together by covalent bonds.

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Which of these compounds is most likely to be ionic?

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A(n) ________ is a representation of covalent bonding in which shared electron pairs are shown either as dashes or as pairs of dots between two atoms and unshared electrons are shown as dots around the individual atoms.

Correct AnswerverifiedShow Answer

A double bond cannot exist between a carbon atom and an oxygen atom.

Correct AnswerverifiedShow Answer

Which of these ionic solids would have the largest lattice energy?

Correct AnswerverifiedShow Answer

What is the electrostatic attraction called that holds oppositely charged ions together in a compound?

Correct AnswerverifiedShow Answer

Select the compound with the highest (i.e., most negative) lattice energy.

Correct AnswerverifiedShow Answer

How many lone pairs of electrons need to be added to complete this Lewis structure?

Correct AnswerverifiedShow Answer

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Take the electronegativity difference (Δ...
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The Lewis structure for CS₂ is:

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