Chapter 4 (the rest)

Question 1

Nonpolar covalent bonds: Electrons __________

Answer 1

Shared equally

Question 2

Polar covalent bonds: Electrons __________

Answer 2

Shared unequally

Question 3

Ion-ion interaction: Electrons __________

Answer 3

Transferred

Question 4

Metal has ________ electronegativity and non-metal has ________ electronegativity.

Answer 4

Low, high

Question 5

Metals form ________, non-metals form ________.

Answer 5

Cations, anions

Question 6

Ionic compounds are ________.

Answer 6

neutral

Question 7

Complex ionic compounds contain a _________.

Answer 7

polyatomic ion

Question 8

Which is bigger?
A. Na atom
B. Na+ cation
C. Same

Answer 8

B

Question 9

Which is bigger?
A. Cl atom
B. Cl– anion
C. Same

Answer 9

B

Question 10

_________
_________ charged.
Smaller than corresponding atom.
Simple _________ formed when metals lose electrons (ie elements with low electronegativity).
Charge usually corresponds to loss of electrons back to “core” which is less stable – loss of electrons always requires energy.

Answer 10

Cations, positively

Question 11

_________
_________ charged.
Larger than corresponding atom.
Simple _________ formed when non-metals gain electrons (ie elements with high electronegativity).
Charge usually corresponds to gain of electrons to the next filled (sub) shell (ie noble gas configuration)

Answer 11

Anions, negatively

Question 12

What charge do you expect on K?
A. +1
B. +2
C. +3
D. –1
E. –2

Answer 12

A

Question 13

What charge do you expect on Mg?
A. +1
B. +2
C. +3
D. –1
E. –2

Answer 13

B

Question 14

What charge do you expect on Al?
A. +1
B. +2
C. +3
D. –1
E. –2

Answer 14

C

Question 15

What charge do you expect on S?
A. +1
B. +2
C. +3
D. –1
E. –2

Answer 15

E

Question 16

What charge do you expect on Br?
A. +1
B. +2
C. +3
D. –1
E. –2

Answer 16

D

Question 17

What is the formula for the compound formed from this ion?
Mg^(2+) + O^(2–)

Answer 17

MgO

Question 18

What is the formula for the compound formed from this ion?
Ca^(2+) + Br^(–)

Answer 18

CaBr₂

Question 19

What is the formula for the compound formed from this ion?
Cs^(+) + S^(2–)
A. CsS
B. CsS(sub 2)
C. Cs(sub 2)S
D. Cs(sub 2)S(sub 2)

Answer 19

C

Question 20

What is the formula for the compound formed from this ion?
Al^(3+) + O^(2–)
A. AlO
B. AlO(sub 2)
C. Al(sub 2)O(sub 3)
D. Al(sub 3)O(sub 2)

Answer 20

C

Question 21

What is the formula for the compound formed from these ions?
Mg^(2+) + N^(3–)
A. MgN
B. MgN(sub 2)
C. Mg(sub 2)N(sub 3)
D. Mg(sub 3)N(sub 2)

Answer 21

D

Question 22

To conduct electricity, there must be moving charges. Normally we think of electrons as carrying these charges, but that’s not the case for salts.
What are the charged particles in a salt?
A. Atoms
B. Ions
C. Molecules

Answer 22

B

Question 23

In which state are ions free to move?
A. Solid
B. Liquid

Answer 23

A