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Number of Neutrons

Total questions: 21

Worksheet time: 36mins

Name
Class
Date
1.

What is the formula to solve for the neutron?

a)

Mass + Atomic Number= Neutrons

b)

Mass x Atomic Number = Neutrons

c)

Mass - Atomic Number = Neutrons

d)

Mass + Number of Protons = Neutron

2.
What is the charge of the neutron?
a)
Negative
b)
Positive
c)
electrical charge
d)
Neutral (no charge)
3.
How many neutrons does the an element with an atomic number of 3 and a mass of 6.9 contain?
a)
6.9
b)
4
c)
3
d)
7
4.
How many neutrons does oxygen have?
a)
16
b)
15.99
c)
8
d)
Doesn't contain any neutrons
5.
How many neutrons does a Hydrogen atom have?
a)
1
b)
2
c)
3
d)
0
6.
What is the number highlighted?
a)
Atomic number
b)
Atomic mass
c)
Number of protons
d)
Number of electons
7.
Which letter represents a proton?
a)
A
b)
B
c)
C
d)
D
8.
Which letter represents a neutron?
a)
A
b)
B
c)
C
d)
D
9.
Which letter represents an electron?
a)
A
b)
B
c)
C
d)
D
10.
Which letter represents the nucleus?
a)
A
b)
B
c)
D
d)
E
11.

How many neutrons does platinum have?

a)

78

b)

117

c)

195

d)

196

12.
In order for me to find the number of neutrons, I must round the atomic mass and then do what?
a)
atomic number-atomic mass
b)
atomic number x atomic mass
c)
atomic mass + atomic number
d)
atomic mass - atomic number
13.

How many neutrons in Lithium?

a)

3

b)

4

c)

7

14.

How many neutrons does Helium have?

a)

2

b)

4

c)

6

15.

Which element has 6 protons?

a)

Be

b)

B

c)

C

d)

N

16.

Which element has 10 protons?

a)

Na

b)

Ne

c)

Mg

d)

Al

17.

How many NEUTRONS does Xenon have

a)

131

b)

54

c)

77

d)

185

18.

How many Neutrons does Neon have?

a)

10

b)

20.18

c)

10.18

d)

20.18

19.

How many NEUTRONS does an Iodine atom have?

a)

53

b)

126

c)

74

d)

179

20.

Which subatomic particles have the least mass?

a)

Neutrons

b)

Protons

c)

Electrons

d)

Atoms

21.

How many NEUTRONS does Sodium have?

a)

11

b)

22

c)

33

d)

12