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Unit 4 Review

Total questions: 78

Worksheet time: 2hrs 50mins

Name
Class
Date
1.

Organize these options into the right categories

Categorize the following

noticed the energies given off were always the same

gold foil experiment

cathode ray tube

broke substances down and realized the products were always in a fixed ratio

Dalton
Thomson
Rutherford
Bohr
2.

Organize these options into the right categories

Categorize the following

had 4 postulates

discovered the electron

discovered the nucleus

discovered energy levels

Dalton
Thomson
Rutherford
Bohr
3.

Organize these options into the right categories

Categorize the following

discovered the electron

discovered the nucleus

discovered energy levels

atom model

atom model

discovered the atom

atom model

atom model

Dalton
Thomson
Rutherford
Bohr
4.

Organize these options into the right categories

Categorize the following

discovered the electron

discovered the nucleus

discovered energy levels

atom model

atom model

discovered the atom

atom model

atom model

Dalton
Thomson
Rutherford
Bohr
5.

Organize these options into the right categories

Categorize the following

atom model

atom model

atom model

atom model

dalton's model

plum pudding model

cookie dough model

rutherford's model

planetary model

Dalton
Thomson
Rutherford
Bohr
6.

Organize these options into the right categories

Categorize the following

atom model

atom model

atom model

atom model

dalton's model

plum pudding model

cookie dough model

rutherford's model

planetary model

Dalton
Thomson
Rutherford
Bohr
7.

Organize these options into the right categories

Categorize the following

atom model

atom model

atom model

atom model

Dalton
Thomson
Rutherford
Bohr
8.

Organize these options into the right categories

Categorize the following

experiment had a ray be attracted to a positive magnet

experiment had large positive particles be deflected from gold

only certain energies could be expelled

everything broke down in the same ratios

cathode ray tube experiment

gold foil experiment

Dalton
Thomson
Rutherford
Bohr
9.

Organize these options into the right categories

a)

All Models

1.

atoms is a sphere

b)

Plum Pudding Model ONLY

2.

positive matter everywhere in sphere

c)

Rutherford's and Planetary Model

3.

positive nucleus

d)

Plum Pudding and Rutherford's Model ONLY

4.

electrons can go where ever

e)

Planetary Model ONLY

5.

electrons on energy levels

10.

Match the following

a)

Democritus

1.

thought there was an atom

b)

Dalton

2.

proved the atom existed

c)

Rutherford

3.

nucleus is a positive mass in the middle

d)

Thomson

4.

electron existed

e)

Bohr

5.

electrons are on energy levels

11.

Match the following

a)

Democritus

1.

thought there was an atom

b)

Dalton

2.

proved the atom existed

c)

Rutherford

3.

nucleus is a positive mass in the middle

d)

Thomson

4.

electron existed

e)

Bohr

5.

electrons are on energy levels

12.

Label the parts of the atom with the scientist that discovered it

a)

Thomson

b)

Rutherford

c)

Bohr

d)

Dalton

1
2
3
1)
2)
3)
13.

Organize these options into the right categories

Categorize the following

beam bent to + magnet

beam continue straight with or without magnet

some alpha particles bounced back

all alpha particles to go through

Gold Foil Exp EXPECTED
Gold Foil Exp ACTUAL
Cathode Ray Exp EXPECTED
Cathode Ray Exp ACTUAL
14.

Label each model with the correct name.

a)

Planetary Model

b)

Plum Pudding Model

c)

Dalton's Model

d)

Bohr's Model

e)

Rutherford's Model

f)

Thomson's Model

1
2
3
4
1)
2)
3)
4)
15.

Label each model with the correct scientist that proved/proposed it.

a)

Dalton

b)

Bohr

c)

Thomson

d)

Democritus

e)

Rutherford

1
2
3
4
1)
2)
3)
4)
16.

Label each model with the correct experiment that led to it.

a)

looked at energy released

b)

Broke down to have same RATIOS everytime

c)

Cathode Ray Tube Exp

d)

Gold Foil Exp

1
2
1)
2)
17.

Organize these options into the right categories.

Categorize the following

dictate what the element is

dictates the atom's charge

dictates the atom's reactivity

if it changes, the mass of the atom changes

if it changes, the element changes

equals the atomic number

equals the number of protons if it is neutral

equals the mass minus the number of protons

positive

negative

neutral

Proton
Electron
Neutron
18.

Organize these options into the right categories.

Categorize the following

dictate what the element is

dictates the atom's charge

dictates the atom's reactivity

if it changes, the mass of the atom changes

if it changes, the element changes

equals the atomic number

equals the number of protons if it is neutral

equals the mass minus the number of protons

positive

negative

neutral

Proton
Electron
Neutron
19.

Organize these options into the right categories.

Categorize the following

dictate what the element is

dictates the atom's charge

dictates the atom's reactivity

if it changes, the mass of the atom changes

if it changes, the element changes

equals the atomic number

equals the number of protons if it is neutral

equals the mass minus the number of protons

positive

negative

neutral

Proton
Electron
Neutron
20.

Neutrons are ​ (a)   and are located ​ (b)   .

Electrons are ​ (c)   and are located ​ (d)   .

Protons are ​ (e)   and are located in the nucleus.

Choose from the below words
heavy
light
in the nucleus
on the outer shells
21.

Neutrons are ​ (a)   .

Electrons are ​ (b)   .

Protons are ​ (c)   .

Choose from the below words
positive
negative
neutral
22.

What is the atomic mass?

A
B
C
D
23.

What is the atomic number?

A
B
C
D
24.

What is the atomic number?

A
B
C
D
25.

What is the atomic mass?

A
B
C
D
26.

Label each correctly

a)

atomic number

b)

atomic mass

c)

symbol

d)

name

1
2
3
1)
2)
3)
27.
All matter is made of what?
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
28.

​ (a)   are all of the same ​ (b)   .

Choose from the below words
Elements
atoms
atomic number
gold
oxygen
29.

Label the parts of an atom.

a)

nucleus

b)

outer shell

c)

proton

d)

neutron

e)

electron

1
2
3
4
5
1)
2)
3)
4)
5)
30.

Label the parts of an atom.

a)

nucleus

b)

outer shell

c)

proton

d)

neutron

e)

electron

1
2
3
4
5
1)
2)
3)
4)
5)
31.

Label the parts of an atom.

a)

nucleus

b)

outer shell

c)

proton

d)

neutron

e)

electron

1
2
3
4
5
1)
2)
3)
4)
5)
32.

Bromine has ​ (a)   protons, ​ (b)   electrons, and ​ (c)   neutrons.

Choose from the below words
35
45
44
36
80
79
34
33.

Aluminum has ​ ​ (a)   protons, ​ (b)   electrons, and ​​ (c)   neutrons​ .

Choose from the below words
12
11
13
22
23
34
34.

Aluminum has ​ ​ (a)   protons, ​ ​ (b)   electrons, and ​ ​ (c)   neutrons​ .

Choose from the below words
20
21
40
60
35.

Aluminum has ​ (a)   protons, ​ (b)   electrons, and ​ (c)   neutrons​ .

Choose from the below words
13
14
27
40
36.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

37.

This is a Bohr Diagram of Nitrogen. Nitrogen has

(a)   electrons.

Choose from the below words
7

2

5

38.

This is a Bohr Diagram of Nitrogen. Nitrogen has

​ (a)   valence electrons.

Choose from the below words
7

2

15
5
39.

This is a Bohr Diagram of Aluminum. How many valence electrons does Aluminum have?

a)

3

b)

4

c)

5

40.

Choose all of the valence electron(s).

A
B
C
D
41.

Choose all of the electrons.

A
B
C
D
42.

Choose all of the valence electron(s).

A
B
C
D
E
F
G
43.

Choose all of the electrons.

A
B
C
D
E
F
G
44.

All elements want ​ (a)   valence electrons except for ​ (b)   who want ​ (c)   valence electrons.

Choose from the below words
8
Hydrogen and Helium
2
group 18
noble gasses
7
1
transition metals
45.

All elements want ​ (a)   valence electrons except for ​ (b)   who want ​ (c)   valence electrons.

Choose from the below words
8
Hydrogen and Helium
2
group 18
noble gasses
7
1
transition metals
46.

What is the correct lewis dot diagram for phosphorus?

a)

Left

b)

Middle Left

c)

Middle Right

d)

Right

e)

none of these

47.

What is the correct lewis dot diagram for potassium?

a)

Left

b)

Middle Left

c)

Middle Right

d)

Right

e)

none of these

48.

What is the correct lewis dot diagram for krypton?

a)

Left

b)

Middle Left

c)

Middle Right

d)

Right

e)

none of these

49.

What is the correct lewis dot diagram for gallium?

a)

Left

b)

Middle Left

c)

Middle Right

d)

Right

e)

none of these

50.

What is the correct lewis dot diagram for germanium?

a)

Left

b)

Middle Left

c)

Middle Right

d)

Right

e)

none of these

51.

What is the correct lewis dot diagram for iodine?

a)

Left

b)

Middle Left

c)

Middle Right

d)

Right

e)

none of these

52.

What is the correct lewis dot diagram for helium?

a)

Left

b)

Middle Left

c)

Middle Right

d)

Right

e)

none of these

53.

What is the correct lewis dot diagram for tellurium?

a)

Left

b)

Middle Left

c)

Middle Right

d)

Right

e)

none of these

54.

What is the correct lewis dot diagram for boron?

a)

Left

b)

Middle Left

c)

Middle Right

d)

Right

e)

none of these

55.

What is the correct lewis dot diagram for boron?

a)

Left

b)

Middle Left

c)

Middle Right

d)

Right

e)

none of these

56.

What is the correct lewis dot diagram for hydrogen?

a)

Left

b)

Middle Left

c)

Middle Right

d)

Right

57.

Why is this an incorrect lewis dot diagrame for Helium?

a)

It is correct

b)

Wrong # of Valence Electrons

c)

Valence Electrons not placed correctly; it is a special one

d)

Symbol is incorrect

58.

Why is this an incorrect lewis dot diagram for Gallium?

a)

It is correct

b)

Wrong # of Valence Electrons

c)

Valence Electrons not placed correctly

d)

Symbol is incorrect

59.

Why is this an incorrect lewis dot diagram for Germanium?

a)

It is correct

b)

Wrong # of Valence Electrons

c)

Valence Electrons not placed correctly

d)

Symbol is incorrect

60.

Why is this an incorrect lewis dot diagram for phosphorus?

a)

It is correct

b)

Wrong # of Valence Electrons

c)

Valence Electrons not placed correctly

d)

Symbol is incorrect

61.

Why is this an incorrect lewis dot diagram for tellurium?

a)

It is correct

b)

Wrong # of Valence Electrons

c)

Valence Electrons not placed correctly

d)

Symbol is incorrect

62.

Organize these options into the right categories

Categorize the following

Ne - Neon

Cu - Copper

Cl - Chlorine

B - Boron

Li - Lithium

He - Helium

Ga - Gallium

1 Valence Electron
3 Valence Electrons
7 Valence Electrons
None of the Other Options
63.

Organize these options into the right categories

Categorize the following

Ne - Neon

Cu - Copper

P - Phosphorus

He - Helium

Xe - Xenon

Bi - Bismuth

Ca - Calcium

Fe - Iron

2 Valence Electron
5 Valence Electrons
8 Valence Electrons
None of the Other Options
64.

Isotopes of an element have a different number of...

a)

Protons

b)

Neutrons

c)

Electrons

d)

Mass

65.

Nickel-59 has how many neutrons?

a)

30

b)

31

c)

32

d)

33

66.

76 protons and 114 neutrons

a)

Osmium-114

b)

Osmium-76

c)

Osmium-190

d)

Osmium-190.23

67.
What do these isotopes of carbon all have in common?
a)
neutrons & mass number
b)
atomic number and neutrons
c)
atomic number and electrons
d)
protons, atomic number, and mass number
68.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
69.
In a correctly written symbol what would be located in the "A" position?
a)
number of neutrons
b)
atomic number
c)
number of electrons 
d)
mass number
70.
How many neutrons in C-14?
a)
6
b)
7
c)
14
d)
8
71.

If X is the symbol for an element, which of the following two symbols represent    isotopes of the same element?    

I. 7735X 

II. 7733X 

III. 8137X 

IV. 8135 X

a)
I and II
b)
III and IV
c)
I and IV
d)
I and III
72.

Element X has 3 isotopes:

X-30 with an abundance of 45%

X-31 with an abundance of 25%

X-32 with an abundance of 30%.

What is the average atomic mass rounded to four decimal places? (do not put your units)

(a)  

73.

Element Y has 3 isotopes:

Y-65 with an abundance of 5%

Y-66 with an abundance of 25%

Y-67 with an abundance of 70%.

What is the average atomic mass rounded to four decimal places? (do not put your units)

(a)  

74.

Element Z has 3 isotopes:

Z-118 with an abundance of 94.86%

Z-119 with an abundance of 4.44%

Z-120 with an abundance of 0.70%.

What is the average atomic mass rounded to four decimal places? (do not put your units)

(a)  

75.

Element Z has 3 isotopes:

Z-95 with an abundance of 25.25%

Z-96 with an abundance of 36.23%

Z-97 with an abundance of 38.52%.

What is the average atomic mass rounded to four decimal places? (do not put your units)

(a)  

76.

Element Z has 2 isotopes:

Z-14 with an abundance of 63.54%

Z-15 with an abundance of 36.46%

What is the average atomic mass rounded to four decimal places? (do not put your units)

(a)  

77.

Element Z has 2 isotopes:

Z-25 with an abundance of 3.56%

Z-24 with an abundance of 96.44%

What is the average atomic mass rounded to four decimal places? (do not put your units)

(a)  

78.

Element Z has 2 isotopes:

Z-245 with an abundance of 5.99%

Z-247 with an abundance of 94.01%

What is the average atomic mass rounded to four decimal places? (do not put your units)

(a)  

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