Chapter 7

Question 1

lattice energy decreases as

Answer 1

the size of the atoms increase

Question 2

ionic bond

Answer 2

metal & nonmetal
large (>2) electronegativity difference

Question 3

polar covalent bond

Answer 3

nonmetal & nonmetal
moderate (0.4-1.6) electronegativity difference

Question 4

nonpolar covalent bond

Answer 4

nonmetal & nonmetal
small (<0.4) electronegativity difference

Question 5

formal charge calculation

Answer 5

of valence electrons - lone pair electrons - # of bonds

Question 6

double bonds are _____ & _____ than single bonds

Answer 6

stronger & shorter

Question 7

AX2

Answer 7

linear, sp

Question 8

AX2E

Answer 8

bent, sp 2

Question 9

AX3

Answer 9

trigonal planar, sp 2

Question 10

AX3E

Answer 10

trigonal pyramidal, sp 3

Question 11

AX4

Answer 11

tetrahedral, sp 3

Question 12

s orbital shape

Answer 12

spherical

Question 13

p orbital shape

Answer 13

dumbbell

Question 14

d orbital shape

Answer 14

clover

Question 15

f orbital shape

Answer 15

double clover

Question 16

bond order calculation

Answer 16

= 1/2 (bonding electrons - antibonding electrons)

Question 17

1 single bond has…

Answer 17

1 sigma bond

Question 18

1 double bond has…

Answer 18

1 sigma and 1 pi bond

Question 19

1 triple bond has…

Answer 19

1 sigma and 2 pi bonds