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Electrons and Waves Review

Total questions: 47

Worksheet time: 3hrs 27mins

Name
Class
Date
1.

Two rays of visible light are traveling through the air.  One light ray is yellow light and the other light ray is green light.  

Which is true regarding their speeds and wavelengths?

a)

They have the same wavelengths and different speeds..

b)
The yellow light and the green light have the same wavelength.
c)
The yellow light has a longer wavelength and the green light has the same wavelength.
d)

They travel at the same speed, but have different wavelengths.

2.

Which is the electron configuration for an oxygen atom?

a)

1s22s22p63s23p64s2

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p6

3.

What atom matches this electron configuration?

1s2 2s2 2p6 3s2

a)

Neon

b)

Magnesium

c)

Aluminum

d)

Potassium

4.

What is this element?

1s22s22p63s23p6

4s23d104p6

a)

Argon

b)

Krypton

c)

Selenium

d)

Bromide

5.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
6.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
7.

The central region of an atom where its neutrons and protons are is its 

a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
8.

Electrons have a (a)   charge.

Choose from the below words
negative
positive
neutral
9.
The shortest wavelength in visible light is______.
a)
violet
b)
red
c)
blue
d)
yellow
10.
The higher the frequency the ______ the energy. 
a)
higher
b)
lower
c)
neither, stays the same
11.
The higher the frequency the ______ the energy. 
a)
higher
b)
lower
c)
neither, stays the same
12.
Which electromagnetic waves have the highest frequencies and the shortest wavelengths?
a)
microwaves
b)
visible light
c)
gamma rays
13.
What is the atomic number of the atom pictured? 
a)
9
b)
10
c)
18
d)
19
14.
What is a valence electron?
a)
an electron that is found in the outermost shell of an atom. 
b)
an electron found in the innermost shell of an atom.
c)
an electron found in the middle shell.
15.
This is the correct dot diagram for sodium (Na)
a)
true
b)
false
16.
This is a correct dot diagram for fluorine (F)
a)
true
b)
false
17.
How many valence electrons are represented here?
a)
7
b)
5
c)
2
d)
8
18.
How many electrons can the d sublevel hold?
a)
14
b)
10
c)
2
d)
6
19.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
20.
Electron arrangement that uses arrows
a)
Electron configuration
b)
Shorthand configuration
c)
Lewis dot structure
d)
Orbital diagram
21.

What does Pauli exclusion principle state ?

a)

states that each electron occupies the lowest energy orbital available

b)

states that -no two electrons in the same orbital can have the same spin

c)

states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals

22.
Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?
a)
Hund’s Rule
b)
Aufbau Principle
c)
Pauli Exclusion Principle
23.
What does Hund's rule states ?
a)
states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals
b)
states that each electron occupies the lowest energy orbital available
c)
states that a maximum of two electrons can occupy a single atomic orbital, but if only if the electros have opposite spins
24.

Each row on the periodic table represents:

a)

an energy level

b)

a sublevel

c)

an electron

d)

an orbital

25.

What is incorrect about this orbital diagram?

a)

Both arrows in the 2p box should be pointing up

b)

There is nothing incorrect with this diagram

c)

In the 2p box there should only be 1 electron in the first 2p box and one in the 2nd 2p box pointing in the same direction.

d)

All the arrows should be pointing up.

26.
 The diagram above represents two electrons with 
a)
a. opposite spins.
b)
 b. the same spin.
c)
c. different energies.
d)
d. different energy levels.
27.
Which orbital shows a violation of Hund's Rule?
a)
A
b)
B
c)
C
d)
D
28.
Which orbital shows a violation of the Aufbau Principle?
a)
A
b)
B
c)
C
d)
D
29.
Which orbital shows a violation of the Pauli Exclusion Principle?
a)
A
b)
B
c)
C
d)
D
30.

True or False: The ground state is the highest energy state of an atom.

a)

True

b)

False

31.

What is the light that you can see called?

a)

observatory light

b)

ultraviolet light

c)

visible light

d)

infrared light

32.

Which of the following is an indication that a wave has high energy?

a)

Long wavelength

b)

High frequency

c)

Fast speed

d)

Dense medium

33.

What is the lowest point on a wave?

a)

Amplitude

b)

Trough

c)

Wavelength

34.

The highest point on a wave

a)

Crest

b)

Amplitude

35.

The distance between 2 crests or troughs

a)

Wavelength

b)

Amplitude

36.

What property of this wave is represented by the letter "A"

a)

Trough

b)

Wavelength

37.

What property of the wave is represented by the letter "B"?

a)

Amplitude

b)

Crest

38.

Wavelength is measured in:

a)

grams

b)

Meters

39.
High frequency waves have _________ wavelengths.
a)
varying
b)
long
c)
the same
d)
short
40.
Which of the following electromagnetic waves has the lowest energy?
a)
gamma ray
b)
infrared wave
c)
visible light wave
d)
microwave
41.

Which of the following is the correct order of steps that produce visible light?

a)

ground state, excited state, light produced, back to ground state

b)
Excitation, Transition, Release, Detection, Travel
c)
Travel, Release, Transition, Excitation, Detection
d)
Detection, Release, Transition, Excitation, Travel
42.

Perform the indicated operation and give an answer with the proper number of significant figures

(2343.0 m) x (650 m)

a)
1,520,000,000
b)
1,520,000
c)
1,520,000.00
d)
1,520,000.0
43.

Perform the indicated operation and give an answer with the proper number of significant figures

(2343.0 m) x (650 m)

a)
1,520,000,000
b)
1,520,000
c)
1,520,000.00
d)
1,520,000.0
44.

As wavelength shrinks on the electromagnetic spectrum, the frequency...

a)

Increases

b)

Decreases

c)

Stays the same

d)

Disappears

45.

How would 3 x 10-4 be written as a decimal?

a)

0.0003

b)

0.003

c)

0.004

d)

.00003

46.

In which list are forms of electromagnetic energy arranged in order from longest to shortest wavelength?

a)

Microwave -> Radio wave -> Infrared rays

b)

Visible light -> x-ray -> radio wave

c)

Microwave -> infrared -> visibile light

d)

Infrared -> radio wave -> ultraviolet

47.

The correct units for each variable in the light equations: wavelength, frequency, energy are:

a)
meters (m), hertz (Hz), joules (J)
b)
meters (m), seconds (s), watts (W)
c)
meters (m), hertz (Hz), volts (V)
d)
meters (m), seconds (s), joules (J)

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