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LightQuantum
ModelLab
Electron Config.
Potpourri
100100 100100 100100 100100 100100
200 200200 200200 200200 200200
300 300300 300300 300300 300300
400 400400 400400 400400 400400
500500 500500 500500 500500 500500
Final
12
3
4
100 Light
Name the three wave properties of light
Answer
Light 100
Refraction, diffraction, interference
200 Light
When an electron in an atom falls from the 5th to the 2nd energy
level, 4.58 x 1019 J of energy are released. What is the frequency
of this energy?Answer
Light 200
E = h
4.58 x 1019 J = 6.626 x 1034Jsec X
Answer = 6.91 x 1014 Hz
300 Light
A bright line in the spectrum of sodium has a wavelength of
5.90 x 10-7m. What is the frequency?
Answer
Light 300
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? Answer
Light400
Light of certain frequencies striking a metal causes the metal to release electrons.
This is a particle property.
500 LightList the colors of visible light in order of increasing frequency.
Add the following types of light to the list, in correct order:
radiowaves, gamma rays, UV, IR, microwaves, X-rays.
Label highest energy and longest wavelength.
Answer
Light 500
Radio Micro IR ROYGBV UV Xrays Gamma
Frequency increasing
Longest wavelength Highest energy
100 Quantum Model
Name the scientist who stated that electrons occupy orbitals of equal energy singly, with parallel
spins, before doubling up. Answer
Quantum Model100
Hund
200 Quantum Model
A 3-dimensional region about the nucleus where an electron may
be found is a(n)
Answer
Quantum Model200
orbital
300 Quantum Model
Name the 1st quantum number, describe what it indicates and what its possible values are.
Answer
Final Jeopardy
A radio station broadcasts at a frequency of 105.4 MHz. What is the wavelength of this radiation?
Answer
Final Jeopardy Answer
105.4 MHz = 105.4 x 106 Hz or 1.054 x 108 Hz
c= 3.00 x 108m/s =
1.054 x 108 Hz
= 2.85 m
Quantum Model300
Principle Quantum Number
Indicates energy level of electron – distance from nucleus
Values are positive integers 1, 2, 3, etc.
400 Quantum Model
Describe or draw the shape and orientations of the orbitals
in a p sublevel.
Answer
Quantum Model400
px py pz
500 Quantum Model
Give the letters naming the 4 types of sublevels and indicate
the maximum # of electrons each can hold.
Answer
Quantum Model 500
s= 2
p= 6
d = 10
f = 14
100 Lab
Which substance, A, B, C, or D, is most attracted to the solvent used to
develop the TLC plate?
Answer
A B U C D
Lab 100
Substance C, because it traveled farthest up the plate.
200 Lab
Explain the difference between phosphorescence and
fluorescence. Give an example of one.
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-in-the-dark toothbrush.
An example of fluorescence is: the bright white glow of dirty shoelaces under a black light.
300 Lab
A flame test is performed on a metal compound. The flame is a
light violet or lilac color. What metal must be present?
(Give name and symbol)
Answer
Lab 300
K Potassium
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 LabExplain why the beads
changed color.Explain why the UV lamps
made the beads change color, but the red laser did not.
Answer
Lab 500
A reversible chemical reaction occurred. The product of the reaction was colored.
A minimum amount of energy was necessary to cause the chemical reaction.
UV radiation has more energy than red frequencies.
Red light does not carry that minimum amount of energy.
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 configuration, noble gas
configuration and dot diagram for strontium.
Answer
Electron Configuration 400
1s22s22p63s23p64s23d104p65s2
[Kr]5s2
Sr:
500 Electron Configuration
Palladium is one of the elements whose electrons shift to create a more stable configuration than
conventional configurations predict. Write the noble gas configuration for palladium.
Answer
Electron Configuration 500
Predicted configuration:
[Kr]5s24d8
Actual configuration:
[Kr]5s04d10
100 PotpourriWhich of the following configurations
is impossible according to the Quantum Model?
Explain (guesses don’t count)
A. 1s22s23p1
B. 1s22s22p62d1
C. [Rn]7s26d1
Answer
Potpourri 100
B. Is impossible because there is no d sublevel allowed in the 2nd energy level.
200 PotpourriWrite symbols and charges for the ions expected to form from
the following elements.calcium
fluorinealuminumnitrogen
Answers
Answers for Potpourri 200
Ca2+
F
Al3+
N3-
300 PotpourriGive the dot symbols for each
of the following elements:
Be Si As S
400 Potpourri
Predict the ratios of Ca reacting with each of the following in forming an ionic compound.
A. ClB. SC. N
Answer
Potpourri 400
CaCl2 1:2
CaS 1:1
Ca3N2 3:2
500 PotpourriObserve the TLC plate. How many components appear to be in the unknown, U?
Which of the standard drugs is present in the unknown? A, B, C, D
Answer
A B U C D
Potpourri 500
There are 4 spots in the unknown, so it has at least 4 components.
The standard drugs that match the spots in the unknown are A and D.
The top and bottom spots have no match on this plate.
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