exam 3

Question 1

E=

Answer 1

hc/wavelength

Question 2

wavelength=

Answer 2

hc/E

Question 3

c=

Answer 3

(wavelength)(f)

Question 4

Balmer series

Answer 4

ends in n=2
(visible light)

Question 5

lyman series

Answer 5

ends in n=1
(UV)

Question 6

Paschen series

Answer 6

ends in n=3
(infared)

Question 7

Paulis Exclusion Principle

Answer 7

e- in same orbital cannot have the same spin

Question 8

Aufbau

Answer 8

specific order of which e- are added to subshells

Question 9

Heisenberg uncertainty

Answer 9

can’t know both the momentum and position of an e-

Question 10

Hunds rule

Answer 10

each e- paced in empty orbital before doubling up

Question 11

Cosmo Gave Xans Under Very Little Influence Might Recover Rabies Bro

Answer 11

Cosmic rays, Gamma rays, X-rays, Ultraviolet, Visible light, Infrared, Microwaves, Radar, Radio, Broadcast

Question 12

diamagnetic

Answer 12

all e- are paired up

Question 13

e- that are always diamagnetic

Answer 13

group 2,12,18

Question 14

ions always diamagnetic

Answer 14

group 1,2,12,13 cations, Na+, Ca2+, Zn2+, Al3+, p-block anions

Question 15

paramagnetic

Answer 15

has at least 1 unpaired e-

Question 16

atomic radius trend

Answer 16

decreases L->R,
increases top->bottom

Question 17

ionization energy trend

Answer 17

increases L->R,
decreases top->bottom

Question 18

ionization energy trend exceptions

Answer 18

group 3A has lower 1st IE than group 2A
group 6A has lower 1st IE than group 5A

Question 19

electron affinity trend

Answer 19

increases L->R
decreases top->bottom

Question 20

electron affinity trend exceptions

Answer 20

easier to add an e- to s-shell than to p-shell
easier to add an e- to an empty p-orbital than one that already contains an e-

Question 21

metallic character trend

Answer 21

increase R->L
increase top->bottom