Exam 4 Study

Question 1

for Z = 1 - 20

Answer 1

stable N/Z = 1

Question 2

for Z = 20 - 40

Answer 2

stable N/Z approaches 1.25

Question 3

for Z = 40 - 80

Answer 3

stable N/Z approaches 1.5

Question 4

for Z > 83

Answer 4

there are no stable nuclei

Question 5

strong field ligands

Answer 5

CN- > NO2- > en > NH3

Question 6

weak field ligands

Answer 6

H2O > OH- > F- > Cl- > Br- > I-

Question 7

size of energy gap increase as the charge on the metal cation _________

Answer 7

increases (Co3+ > Cr3+ > Fe3+ > Fe2+ > Co2+ > Ni2+ > Mn2+)

Question 8

only electron configurations of _, _, _, or _ can have low or high spin

Answer 8

d4, d5, d6, or d7

Question 9

h =

Answer 9

6.626E-34 Js

Question 10

c =

Answer 10

3E8 m/s

Question 11

E =

Answer 11

hc/lambda

Question 12

Simple Cubic Cell

Atoms per cell

Answer 12

1

Question 13

Simple Cubic Cell

Coordination number

Answer 13

6

Question 14

Simple Cubic Cell

Edge length in terms of r

Answer 14

2r

Question 15

Simple Cubic Cell

Packing efficiency

Answer 15

52%

Question 16

Body Centered Cubic Cell

Atoms per cell

Answer 16

2

Question 17

Body Centered Cubic Cell

Coordination number

Answer 17

8

Question 18

Body Centered Cubic Cell

Edge length in terms of r

Answer 18

4r/sqrt3

Question 19

Body Centered Cubic Cell

Packing efficiency

Answer 19

68%

Question 20

Face Centered Cubic Cell

Atoms per unit cell

Answer 20

4

Question 21

Face Centered Cubic Cell

Coordination number

Answer 21

12

Question 22

Face Centered Cubic Cell

Edge length in terms of r

Answer 22

2sqrt2(r)

Question 23

Face Centered Cubic Cell

Packing efficiency

Answer 23

74%

Question 24

purple wavelengths

Answer 24

400 nm - 430 nm

Question 25

blue wavelengths

Answer 25

430 nm - 490 nm

Question 26

green wavelengths

Answer 26

490 nm - 560 nm

Question 27

yellow wavelengths

Answer 27

560 nm - 580 nm

Question 28

orange wavelengths

Answer 28

580 nm - 650 nm

Question 29

red wavelengths

Answer 29

650 nm - 750 nm

Question 30

Irregular Electron Configurations

expected: Cr = [Ar]4s^2 3d^4

found experimentally:

Answer 30

Cr = [Ar]4s^1 3d^5

Question 31

Irregular Electron Configurations

expected: Cu = [Ar]4s^2 3d^9

Answer 31

found experimentally: Cu = [Ar]4s^1 3d^10

Question 32

Irregular Electron Configurations

expected: Mo = [Kr]5s^2 4d^4

Answer 32

found experimentally: Mo = [Kr]5s^1 4d^5

Question 33

Irregular Electron Configurations

expected: Ru = [Kr]5s^2 4d^6

Answer 33

found experimentally: [Kr]5s^1 4d^7

Question 34

Irregular Electron Configurations

expected: Pd = [Kr]5s^2 4d^8

Answer 34

found experimentally: Pd = [Kr]5s^0 4d^10

Question 35

diamagnetic

Answer 35

low spin

Question 36

paramagnetic

Answer 36

high spin