Free Printable Atoms Grade 8 2020

1.

The positive particles of an atom are

a)

electrons

b)

positrons

c)

neutrons

d)

protons

2.

Particles in an atom that are neutral and have no charge are

a)

negatrons

b)

electrons

c)

neutrons

d)

protons

3.

An atoms overall charge is

a)

positive

b)

depends on its mood

c)

neutral

d)

negative

4.

The smallest particle of any particular type of matter is known by which of the following terms?

a)

Compound

b)

Atom

c)

Chemical

d)

Element

5.

all matter is made of what

a)

energy

b)

atoms

c)

electrons

d)

compounds

6.

If an atom has 3 electrons, how many protons does it have?

a)

1

b)

2

c)

4

d)

3

7.

The subatomic particle with a negative charge is the

a)

electron

b)

proton

c)

neutron

d)

nucleus

8.

If the number of protons equal the number of _____, the atom will have no charge

a)

protons

b)

neutrons

c)

electrons

d)

nucleus

9.

What is the atomic number?

a)

the number of protons

b)

the number of protons and neutrons

c)

the number of neutrons

d)

the number of protons and electrons

10.

What is the mass number?

a)

the number of protons

b)

the number of protons and neutrons

c)

the number of neutrons

d)

the number of protons and electrons

11.

What is the number of protons that the element in this image contain?

a)

14

b)

7

c)

15

d)

18

12.

What is matter composed of?

a)

Cells

b)

Atoms

13.

What are the 3 particles that make-up the atom?

a)

Protons, neutrons, and isotopes

b)

Neutrons, isotopes, and electrons

c)

Positives, negatives, and electrons

d)

Protons, neutrons, and electrons

14.

Which statement best describes an electron?

a)

Smaller mass than a proton and a negative charge

b)

Smaller mass than a proton and a positive charge

c)

Greater mass than a proton and a negative charge

d)

Greater mass than a proton and a positive charge

15.

How many protons are in Gold

a)

79

b)

197

c)

118

d)

276

16.

How many electrons are in Gold

a)

79

b)

118

c)

197

d)

276

17.

How many neutrons are in Gold

a)

118

b)

79

c)

197

d)

276

18.

How many Neutrons are in Neon

a)

10

b)

21

c)

20

d)

30

19.

How many protons are in Neon

a)

10

b)

20

c)

21

d)

30

20.

How many electrons are in Potassium

a)

19

b)

39

c)

20

d)

58

21.

How many neutrons are in Potassium

a)

19

b)

20

c)

39

d)

58

22.

How many neutrons are in Tungsten

a)

110

b)

74

c)

183

d)

258

23.

What is the atomic mass of Neon?

a)

10

b)

20.18

c)

10.18

d)

20

24.

How many protons are in Beryllium?

a)

4

b)

9

c)

5

d)

2

25.

What is the atomic mass of Copper?

a)

63.546

b)

29

c)

29.546

d)

92

26.

How many electrons does a Copper atom have?

a)

63

b)

29

c)

92

d)

34

27.

What is the atomic mass of Helium

a)

4.0026

b)

2.0026

c)

4

d)

1

28.

How many neutrons does a Hydrogen atom have?

a)

1

b)

2

c)

3

d)

0

29.

How many electrons does an Iodine atom have?

a)

53

b)

126

c)

73

d)

179

30.

What is the atomic weight of Iron?

a)

26

b)

55.845

c)

56

d)

30

31.

How many electrons does an atom of Krypton have?

a)

36

b)

83.798

c)

47.798

d)

119.798

32.

How many protons are in Sodium?

a)

11

b)

22

c)

12

d)

33

33.

How many neutrons are in Magnesium?

a)

36

b)

12

c)

24

d)

6

34.

How many neutrons are in Phosphorus?

a)

16

b)

15

c)

31

d)

46

35.

How many protons are in Chlorine?

a)

35

b)

18

c)

17

d)

52

36.

How many protons, neutrons, and electrons are in Oxygen?

a)

Protons = 8; Neutrons = 16; Electrons = 8

b)

Protons = 8; Neutrons = 8; Electrons = 8

c)

Protons = 16; Neutrons = 8; Electrons = 16

d)

Protons = 16; Neutrons = 24; Electrons = 16

37.

Where is the element's atomic NUMBER located?

a)

the top

b)

the bottom

c)

the top + the bottom

d)

the number of protons + the number of neutrons

38.

Where is the element's atomic MASS located?

a)

at the top

b)

at the bottom

c)

the top number + the bottom number

d)

the number of protons + the number of neutrons

39.

Generally, the number of neutrons ____ the number of protons in an atom.

a)

=

b)

<

c)

>

40.

Why should you never trust an atom?

a)

They are only found in living things.

b)

They make up everything!

c)

They are only found on nonliving things.

d)

They are not real particles.

Atoms Grade 8 2020

Total questions: 40

Worksheet time: 29mins

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