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.