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Protons, Neutrons, and Electrons

Total questions: 84

Worksheet time: 42mins

Name
Class
Date
1.

Each electron has a charge of ___.

a)

+1

b)

0

c)

-1

2.

What is the Mass Number of the atom in the image?

4 lines
3.

What is the Atomic Number of the atom in the previous slide?

4 lines
4.

How many electrons does the atom in the previous slide have?

4 lines
5.

What is the mass number of the atom in the previous slide?

4 lines
6.
a)
Carbon
b)
Boron
c)
Nitorgen
d)
Fluorine
7.
a)
Carbon
b)
Boron
c)
Helium
d)
Hydrogen
8.
Atomic Mass
a)
1
b)
2
c)
3
d)
4
9.
a)
Neutral atom
b)
Negative Ion 
c)
Positive ion
10.
a)
Neutral atom
b)
Negative Ion 
c)
Positive ion
11.
a)
Neutral atom
b)
Negative Ion 
c)
Positive ion
12.
Name the element
a)
Neutral atom
b)
Negative Ion 
c)
Positive ion
13.
a)
Carbon
b)
Oxygen
c)
Nitrogen 
d)
Fluorine
14.
a)
Helium
b)
Oxygen
c)
Hydrogen
d)
Fluorine
15.
Atomic Mass 
a)
6
b)
12
c)
18
d)
36
16.
a)
Neutral atom
b)
Neg Ion 
c)
Pos Ion
17.
a)
Neutral atom 
b)
Neg Ion
c)
Pos Ion 
18.
Neutrons?
a)
8
b)
9
c)
10
d)
18
19.
Protons?
a)
8
b)
9
c)
10
d)
17
20.
Atomic Number
a)
8
b)
10
c)
18
d)
28
21.
Atomic mass
a)
8
b)
10
c)
18
d)
28
22.
Charge
a)
+2 Ion 
b)
-2 Ion
c)
Neutral atom 
23.
Atomic mass
a)
2 
b)
4 
c)
6
d)
8
24.
Charge
a)
+2 ion
b)
-2 ion 
c)
Neutral Atom
25.
Atomic Mass
a)
16
b)
24
c)
33
d)
35
26.
a)
-2 ion
b)
+2 ion 
c)
Neutral atom 
27.
Neutrons
a)
4
b)
5
c)
9
d)
0
28.
Charge
a)
+1 Ion
b)
-1 Ion 
c)
Neutral ion
29.
Atomic mass
a)
14
b)
24
c)
28
d)
42
30.
atomic mass
a)
1
b)
2
c)
3
d)
4
31.
Charge
a)
+1ion
b)
-1 ion
c)
Neutral atom
32.
Protons
a)
17
b)
20
c)
37
d)
-1
33.
Neutrons
a)
17
b)
20
c)
37
d)
-1
34.
Electrons
a)
17
b)
18
c)
20
d)
16
35.
Atomic Mass
a)
1
b)
2
c)
3
d)
4
36.
Charge
a)
+1ion
b)
-1ion
c)
Neutral Atom
d)
unstable 
37.
Atomic Number 
a)
14
b)
24
c)
28
d)
30
38.
Atomic Mass 
a)
14
b)
24
c)
28
d)
30
39.
Electrons 
a)
12
b)
14
c)
26
d)
0
40.
Neutrons
a)
12
b)
14
c)
26
d)
0
41.
Protons
a)
12
b)
14
c)
26
d)
0
42.
What subatomic particle determines the identity of an atom?
a)
Electron
b)
Neutron
c)
Proton
d)
Neuron
43.
What determines the electrical charge of an atom?
a)
Neutron
b)
Electron
c)
Proton
d)
Nucleus
44.
How do you determine the mass number of an atom?
a)
Add protons, neutrons, and electrons
b)
Add protons and neutrons
c)
Add protons and electrons
d)
It is equal to the number of protons
45.
a)
Carbon
b)
Boron
c)
Nitorgen
d)
Fluorine
46.
a)
Carbon
b)
Boron
c)
Helium
d)
Hydrogen
47.
Atomic Mass
a)
1
b)
2
c)
3
d)
4
48.
a)
Neutral atom
b)
Negative Ion 
c)
Positive ion
49.
a)
Neutral atom
b)
Negative Ion 
c)
Positive ion
50.
a)
Carbon
b)
Oxygen
c)
Nitrogen 
d)
Fluorine
51.

Atomic Mass

a)

8

b)

10

c)

16

d)

18

52.
Atomic mass
a)
2 
b)
4 
c)
6
d)
8
53.
Charge
a)
+2 ion
b)
-2 ion 
c)
Neutral Atom
54.

Atomic Mass

a)

16

b)

24

c)

33

d)

35

55.
a)
-2 ion
b)
+2 ion 
c)
Neutral atom 
56.
Charge
a)
+1 Ion
b)
-1 Ion 
c)
Neutral ion
57.
atomic mass
a)
1
b)
2
c)
3
d)
4
58.
Charge
a)
+1ion
b)
-1 ion
c)
Neutral atom
59.
Protons
a)
17
b)
20
c)
37
d)
-1
60.
Neutrons
a)
17
b)
20
c)
37
d)
-1
61.
Electrons
a)
17
b)
18
c)
20
d)
16
62.
Atomic Mass
a)
1
b)
2
c)
3
d)
4
63.

Charge

a)

+1 ion

b)

-1 ion

c)

Neutral Atom

d)

unstable

64.
Electrons 
a)
12
b)
14
c)
26
d)
0
65.
Neutrons
a)
12
b)
14
c)
26
d)
0
66.

What is the CHARGE of this atom?

a)

8

b)

10

c)

-2

d)

16

67.

If a PROTON was added to this atom, what would it change?

a)

Charge

b)

Mass Number

c)

Element / Name

d)

All of these options

68.

What makes an ION with positive charge?

a)

More PROTONS than ELECTRONS

b)

More ELECTRONS than PROTONS

c)

More NEUTRONS than PROTONS

d)

More NEUTRONS than ELECTRONS

69.

As you add protons to the center of the atom, what changes occur?

a)

Element changes and mass number decreases

b)

Element stays the same and mass number increases

c)

Element changes and mass number increases

d)

Element stays the same and mass number decreases

70.

If there is an isotope with 8 protons, 9 neutrons and 10 electrons, what type of atom or ion is it?

a)

a neutral atom

b)

a +2 ion

c)

a -2 ion

71.

If there is an isotope with 10 protons, 9 neutrons and 8 electrons, what type of atom or ion is it?

a)

a neutral atom

b)

a +2 ion

c)

a -2 ion

72.

¿Cuál es el número atómico del átomo de hierro?

a)

56

b)

26

c)

86

73.

¿Cuál es el número másico del Fósforo?

a)

31

b)

30

c)

15

d)

46

74.

¿Cuál es el número de electrones del un átomo de Na?

a)

23

b)

11

c)

34

75.

¿Cuál es el número de neutrones del arsénico?

a)

75

b)

33

c)

42

76.

Which of the following images correctly describes lithium with the following information

3 Protons

4 Neutron

3 electrons

a)
b)
c)
77.
A charged atom
a)
Ion
b)
Isotope
c)
Electron Cloud
d)
Quark
78.

When you have a negative ion of an atom, O-2 for example, do you have a higher number of protons or electrons?

a)

Number of protons

b)

Number of electrons

79.

As you add protons to the center of the atom, what changes occur? Check all that applies

a)

Element changes and mass number decreases

b)

Element stays the same and mass number increases

c)

Element changes and mass number increases

d)

Element stays the same and mass number decreases

80.

Add 6 protons to the center of the atom. Then add one neutron. Continue to add neutrons, what do you observe?

a)

The mass number stays the same.

b)

The mass number increases.

c)

Thea mass number does not change

d)

4

81.

Add two protons and two neutrons to the center of the atom. Add 1 electron. Continue to add more electrons, what changes occur?

a)

The net charge decrease

b)

Nothing happens

c)

The net charge increases

d)

The mass increases

82.

Add two protons and two neutrons to the center of the atom. Add 1 electron. Continue to add more electrons, what changes occur?

a)

The net charge decrease

b)

Nothing happens

c)

The net charge increases

d)

The mass increases

83.
What does the "4" tell us?
a)
mass
b)
number of neutrons
c)
number of protons
d)
charge
84.

Using the information from the previous question, how many electrons are needed to make the atom neutral?

a)

0

b)

1

c)

2

d)

3