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Worksheets

Protons, Neutrons and Electrons

Total questions: 17

Worksheet time: 10mins

Name
Class
Date
1.

How many protons are in Gold

a)

79

b)

197

c)

118

d)

276

2.

How many electrons are in Gold

a)

79

b)

118

c)

197

d)

276

3.

How many neutrons are in Gold

a)

118

b)

79

c)

197

d)

276

4.

How many Neutrons are in Neon

a)

10

b)

21

c)

20

d)

30

5.

How many protons are in Neon

a)

10

b)

20

c)

21

d)

30

6.

How many electrons are in Potassium

a)

19

b)

39

c)

20

d)

58

7.

How many neutrons are in Potassium

a)

19

b)

20

c)

39

d)

58

8.

How many neutrons are in Tungsten

a)

110

b)

74

c)

183

d)

258

9.

Oxygen has a mass of...

a)

8

b)

16

c)

15

d)

6

10.

Arsenic has a mass of _______

a)

33

b)

79

c)

75

d)

47

11.

How many neutrons are in Tungsten

a)

110

b)

74

c)

183

d)

258

12.

What is the atomic mass of Neon?

a)

10

b)

20.18

c)

10.18

d)

20

13.
How many protons are in Beryllium?
a)
4
b)
9
c)
5
d)
2
14.

How many neutrons does a Hydrogen atom have?

a)

1

b)

2

c)

3

d)

0

15.

How many electrons does a Hydrogen atom have?

a)

1

b)

2

c)

3

d)

0

16.

What is the atomic mass of Sodium?

a)

11

b)

22.990

c)

33.990

d)

11.990

17.

What does top most number (47) represent?

a)

Number of protons

b)

Number of neutrons

c)

Number of electrons

d)

Number of protons and neutrons