Exam 3

Question 1

total nodes

Answer 1

n-1

Question 2

angular nodes

Answer 2

equal to l
any value from n to n-1

Question 3

radial nodes

Answer 3

n - 1 - l

Question 4

hund’s rule

Answer 4

maximize the spin

Question 5

periodic trends - Z effective

Answer 5

across a row in the table
Z eff increases
down a column in the table
Z eff decreases

Question 6

periodic trends - atomic radius

Answer 6

As Z eff increases, radius decreases

Question 7

periodic trends - ionization energy

Answer 7

as Z eff increases, IE also increases

Question 8

periodic trends - electron affinity

Answer 8

as Z eff increases, EA becomes a larger and more negative number

Question 9

periodic trends - electronegativity

Answer 9

as Z eff increases, electronegativity increases and becomes more positive
across a row increases. down a column decreases

Question 10

periodic trends - ionic radius

Answer 10

as Z eff increases, atomic size decreases
cations: ionic size decreases dramatically
anions: ionic size increases dramatically

Question 11

exceptions to hund’s rule

Answer 11

Cr: [Ar] 4s1 3d5
Cu: [Ar] 4s1 3d10
Mo: [Kr] 5s1 4d5
Ag: [Kr] 5s1 4d10

Question 12

VSEPR Geometry
2 electron domains, 0 lone pairs

Answer 12

linear & 180º

Question 13

VSEPR Geometry
3 electron domains, 0 lone pairs

Answer 13

Trigonal planar & 120º

Question 14

VSEPR Geometry
3 electron domains, 1 lone pair

Answer 14

bent or angular & <120º

Question 15

VSEPR Geometry
4 electron domains, 0 lone pairs

Answer 15

tetrahedral & 109.5º

Question 16

VSEPR Geometry
4 electron domains, 1 lone pair

Answer 16

trigonal pyramidal & < 109.5º

Question 17

VSEPR Geometry
4 electron domains, 2 lone pairs

Answer 17

bent or angular & much less 109.5º

Question 18

VSEPR Geometry
5 electron domains, 0 lone pairs

Answer 18

trigonal bipyramid & 120º + 90º

Question 19

VSEPR Geometry
5 electron domains, 1 lone pair

Answer 19

seesaw & < 120º and < 90º

Question 20

VSEPR Geometry
5 electron domains, 2 lone pairs

Answer 20

t-shape & < 90º

Question 21

VSEPR Geometry
5 electron domains, 3 lone pairs

Answer 21

linear & 180º

Question 22

VSEPR Geometry
6 electron domains, 0 lone pairs

Answer 22

octahedral & 90º

Question 23

VSEPR Geometry
6 electron domains, 1 lone pair

Answer 23

square pyramid & two < 90º

Question 24

VSEPR Geometry
6 electron domains, 2 lone pairs

Answer 24

square planar & 90º

Question 25

VSEPR Geometry
6 electron domains, 3 lone pairs

Answer 25

t-shape & < 90º

Question 26

VSEPR Geometry
6 electron domains, 4 lone pairs

Answer 26

linear & 180º

Question 27

hybridization - linear + 0 or 1 lone pairs

Answer 27

sp

Question 28

hybridization - trigonal planar (0 lone pairs), bent (1 lone pair), or linear (2 lone pairs)

Answer 28

sp2

Question 29

hybridization - tetrahedral (0 lone pairs), pyramidal (1 lone pair) or bent (2 lone pairs)

Answer 29

sp3

Question 30

hybridization - trigonal bipyramidal (0 lone pairs), seesaw (1 lone pair), or t-shaped (2 lone pairs)

Answer 30

sp3d

Question 31

hybridization - octahedral (0 lone pairs), square pyramidal (1 lone pair) or square planar (2 lone pairs)

Answer 31

sp3d2