Final
Quantum
Light
Model
Lab
Electron
Potpourri
Config.
100
100
100
100
100
200
200
200
200
200
1
2
300
300
300
300
300
400
400
400
400
400
500
500
500
500
3
500
4
100 Light
Name three wave properties
of light.
Light behaves as a wave
when it _______.
Answer
Light
100
Refraction, diffraction,
interference, reflection
Light behaves as a wave
when it propagates (travels).
200 Light
When an electron in an atom falls
from the 5th to the 2nd energy
level, 4.58 x 1019 J of energy are
released. What is the frequency
of this energy?
Answer
Light
200
E = h
4.58 x 1019 J = 6.626 x 1034Jsec X
Answer = 6.91 x 1014 Hz
300 Light
A bright line in the spectrum of
sodium has a wavelength of
5.90 x 102nm. What is the
frequency?
Answer
Light 300
?m = 5.90 x 102 nm x 1 m_ = 5.90 x 10-7 m
1 x 109 nm
Use c = 
3.00 x 108m/sec = 5.90 x 10-7 m X
Answer X= 5.08 x 1014Hz
400 Light
Explain the photoelectric
effect. Is this a wave or
particle property? Give an
example of how this is useful.
Answer
Light
400
Light of certain frequencies striking
a metal causes the metal to
release electrons. (electric current
is created)
This is a particle property.
Useful: solar panels, garage door
opener safety
500 Light
A device emits light with
frequency of 9.37 x 107 Hz.
Find the wavelength.
Is the device a tanning bed, red
laser or a radio tower?
All Play!
Answer
Light
500
Use c = 
3.00 x 108 m/s =  9.37 x 107 Hz
 = 3.20 m
?nm = 3.20m X 1 x 109 nm = 3.20x 109 nm
1 meter
3.20x 109 nm is longer wavelength than
visible light, thus it is Radio
100 Quantum Model
Name the scientist who stated
that electrons occupy orbitals of
equal energy singly, with parallel
spins, before doubling up.
Answer
Quantum Model
100
Hund
200 Quantum Model
A 3-dimensional region about the
nucleus where an electron may
be found is a(n)
Answer
Quantum Model
200
orbital
300 Quantum Model
Name the 1st quantum number,
describe what it indicates and
what its possible values are.
Answer
Final Jeopardy
A photon of yellow light has
3.58 x 10-19 Joules of energy.
What is the wavelength of
this light in nanometers?
Answer
Final Jeopardy Answer
E = hc/

 = hc =
E
6.626 x 10-34 Jsec x 3.00 x 108 m/s
3.58 x 10-19 Joules
 = 5.55 x 10-7 m = 555 nm
Quantum Model
300
Principle Quantum Number
Indicates energy level of electron –
distance from nucleus
Values are positive integers 1, 2,
3, etc.
400 Quantum Model
The noble gas configuration
of an element is:
[Kr]5s24d105p3.
Identify the element and state
how many unpaired electrons
it has.
Quantum Model
400
1. [Kr]5s24d105p3 -- this element is Sb.
2. It has 3 unpaired electrons.
500 Quantum Model
Give the letters naming the 4
types of sublevels (shapes) and
indicate the maximum # of
electrons each can hold.
Answer
Quantum Model 500
s= 2
p= 6
d = 10
f = 14
An illuminated tungsten light
bulb, a hot toaster coil, and
molten lava are all examples
of __________.
The spectrum of these light
sources would be _________.
Answer
Lab 100
Incandescence
continuous spectrum
200 Lab
Explain the difference between
phosphorescence and
fluorescence. Give one example
of each.
Answer
Lab 200
Both are the absorption of energy(usually UV)
with the emission of visible light.
In fluorescence the object stops glowing as
soon as the energy source is removed.
In phosphorescence, the glowing persists
for a time after the energy source is
removed.
An example of phosphorescence is: a glow-inthe-dark toothbrush.
An example of fluorescence is: the bright white
glow of dirty shoelaces under a UV light.
300 Lab
A flame test is performed on a
metal compound. The flame is
a hot pink/magenta color.
What metal must be present?
(Give name and symbol)
Answer
Lab 300
Li
Lithium
400 Lab
What piece of lab equipment
is needed to view a
spectrum? What in this
room emits a bright line
spectrum?
Answer
Lab 400
A spectroscope
The fluorescent lights or a flame
test.
500 Lab
What is the main difference
between luminescence and
incandescence?
Give 2 examples each of
incandescence and
chemiluminescence.
Answer
Lab 500
Luminescence is light produced without
heat.
Incandescence is light from a material
heated to glowing.
Incandescence – a W filament light bulb, a
metal wire held in a flame until it glows
red.
Chemiluminescence- glowsticks, fireflies,
moon jellyfish, the plants on Pandora
100 Electron Configuration
Identify each of the following
atoms based on their electron
configurations.
A. [Ne]3s2
B. [Ar]3d64s2
C. [Xe]6s24f145d7
Answer
Electron Configuration 100
A.Mg – magnesium
B.Fe – iron
C.Ir -- iridium
200 Electron Configuration
Write the orbital diagram
for phosphorus.
Answer
Electron Config 200 Answer

1s
       
2s 2px py pz 3s 3px py pz
300 Electron Configuration
Write the noble gas
configuration for Re,
Rhenium
Answer
Electron Configuration 300
Re [Xe]6s24f145d5
400 Electron Configuration
Give the electron configuratio
and noble gas configuration
for strontium.
Answer
Electron Configuration 400
2
2
6
2
6
2
10
6
2
1s 2s 2p 3s 3p 4s 3d 4p 5s
[Kr]5s2
Sr:
500 Electron Configuration
Write an electron configuration
for an excited carbon atom.
Answer
All Play!!
Electron Configuration 500
Ground state: 1s22s22p2
Excited configuration:
1s22s22p13s1
one of the 2p electrons is in a higher
energy orbital (can be any higher
orbital)
100 Potpourri
Which of the following
configurations is impossible
according to the Quantum Model?
A.
B.
C.
D.
1s22s23p1
1s22s22p62d1
[Rn]7s26d1
[Xe]6s25d1
Answer
Potpourri 100
B. Is impossible because there is
no d sublevel allowed in the 2nd
energy level.
Determine the % by mass
of nitrogen in TNT. The
formula of TNT is C7H5N3O6
Answer
Answers for Potpourri 200
% N in C7H5N3O6
% N = 14.01 x 3 x 100 = 18.50%
227.15 g/mol
300 Potpourri
A line in the spectrum of an
element has a wavelength of
7.5 x 10-7 m.
1. Can you see this light?
2. What is the energy of the
light?
Answer
Potpourri 300 Answer
• The wavelength is longer than visible
(7 x 10-7 m or 700nm) thus it is infrared.
No, we can’t see it.
• E= hc = (6.626 x 10-34Jsec) (3.00 x 108 m/s)

7.5 x 10-7 m
= 2.7 x 10-19 J
400 Potpourri
State and explain the Pauli
Exclusion Principle.
Answer
Potpourri 400
PEP: No two electrons in the
same atom have the same 4
quantum numbers.
If two electrons have the same
first 3 quantum numbers, they
are in the same orbital and thus
must have different spins.
500 Potpourri
A sample has the
composition of 85.5% C and
14.5% H. It has a molar mass
of 98. What is the molecular
formula of this compound?
(hint: find empirical formula 1st!)
Potpourri 500
mol C = 85.5 g x 1 mol = 7.12 mol C/7.12 = 1
12.01g
mol H = 14.5 g x 1 mol = 14.4 mol H/7.12 = 2.02
1.01 g
Empirical = C1H2
molar mass of empirical = 14.03
98/14.03 = 7
Molecular formula = C7H14