unit 9

Question 1

origin line

Answer 1

line that goes through the middle of wave lengths

Question 2

wave-particle duality theory

Answer 2

concept of quantum mechanics that substances exhibit particle or wave properties according to the experimental particles

Question 3

photon

Answer 3

a particle of light, a discrete bundle of electromagnetic energy that ineracts with matter similarly to particles

Question 4

energy

Answer 4

the capacity for doing work or producing heat, usually measured in joules (j)

Question 5

excited state

Answer 5

a higher energy state of an electron or atom

Question 6

relationship between energy and frequency

Answer 6

direct

Question 7

f

Answer 7

-7 orbitals
- fancy shape
- 14 electrons max

Question 8

wavelength

Answer 8

distance between the same points on adjacent waves, usually measured in (m) or (nm)

Question 9

aufbau principle

Answer 9

electrons fill lower-energy atomic orbitals before filling higher-energy one

Question 10

relationship between wavelength and frequency

Answer 10

inverse

Question 11

valence electrons

Answer 11

electrons on the most outer energy level

same # as column

Question 12

d

Answer 12

-5 orbitals
- double dumbbell or dumbbell with donut
- 10 electrons max

Question 13

s

Answer 13

• 1 orbital
• spherical shape
  -2 electrons max

Question 14

core electrons

Answer 14

all electrons inside the valence level

Question 15

spectroscope

Answer 15

an apparatus for producing and recording spectra for examination

Question 16

relationship between energy and wavelength

Answer 16

inverse

Question 17

sublevel (subshell)

Answer 17

coefficient number, level of energy

Question 18

hund´s rule

Answer 18

before the double occupation of any orbital, every orbital in the sub level is singly occupied.

Question 19

Pauli exclusion principle

Answer 19

only 2 electrons can occupy a single atomic orbit but only if the electrons have opposite spins

Question 20

ground state

Answer 20

lowest possible energy level of an electron or atom

Question 21

energy level (shell)

Answer 21

distance from nucleus, the specific energies of an electron an atom can have

Question 22

what happens to electrons when an emission spectrum is produced

Answer 22

• electrons absorb energy
  -electrons release energy
  -energy that is released is in the form of light

Question 23

crest

Answer 23

highest point on a wave

Question 24

frequency

Answer 24

the number of times a point on a wave passes a given point per unit of time. usually measured in hertz (hz)

Question 25

trough

Answer 25

lowest point of a wave

Question 26

p

Answer 26

• 3 orbitals
• peanut or dumbbell shape
• 6 electrons max

Question 27

amplitude

Answer 27

distance from crest or trough to origin line