Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Atoms and Molecules Review

Total questions: 41

Worksheet time: 26mins

Name
Class
Date
1.

What is on the outside, or outer part, of an atom?

a)

electron

b)

neutron

c)

proton

d)

nucleus

2.

The atomic number tells us how many ____________ are in an atom?

a)

girls

b)

neutrons

c)

mass

d)

protons

3.

We can get the atomic mass of an atom by adding:

a)

electrons and protons

b)

protons and electrons

c)

protons and neutrons

d)

electrons and neutrons

4.
Small positively charged particles that are found in the nucleus of an atom
a)
neutron
b)
ion
c)
proton
d)
electron
5.
A tiny, negatively charged particle that moves around the outside of the nucleus of an atom
a)
ion
b)
proton
c)
electron
d)
neutron
6.
All matter is made of what?
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
7.
The particles that are found in the nucleus of an atom are
a)
neutrons and electrons
b)
electrons only
c)
protons and neutrons
d)
protons and electrons
8.
Which subatomic particle has a neutral charge?
a)
Proton
b)
Neutron
c)
Electron
9.
The number of protons in an atom
a)
Atomic Number
b)
Atomic Proton
c)
Atomic Neutron
d)
Atomic Mass
10.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
11.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
12.
How many neutron are in the atom "K"?
a)
7
b)
2
c)
39
d)
12
13.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
14.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
15.
an atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
16.
What charge does an Electron have?
a)
Negative
b)
Positive
c)
Neutral
d)
Complicated
17.
What charge does a Proton have?
a)
Negative
b)
Positive
c)
Neutral
d)
Contrated
18.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
19.

How many electrons does potassium K contain? (click to see image)

a)

19

b)

39

c)

20

d)

40

20.

This is the location of electrons in an atom.

a)

nucleus

b)

protons

c)

orbitals

d)

neutrons

21.

How many valence (outer) electrons does an Oxygen atom have?

a)

2

b)

6

c)

8

d)

16

22.

___________ simplify the Bohr Model by showing only the outer valence electrons used for bonding.

a)

Lewis Dot Diagrams

b)

Bohr Models

c)

Electron Clouds

d)

Periodic Tables

23.

What is a valence electron?

a)

Electrons in the first energy shell

b)

Electrons in the second energy shell

c)

Electrons in the outer shell

d)

Total number of electrons

24.

The innermost energy level has a maximum of how many electrons?

a)

1

b)

2

c)

6

d)

8

25.

What does the Bohr Model represent?

a)

The structure of molecules

b)

The structure of the Solar System

c)

The structure of an atom

d)

The structure of East Hills

26.

Which element is this?

a)

Nickel

b)

Neon

c)

Sodium

d)

Nitrogen

27.

Name this element.

a)

Argon

b)

Chlorine

c)

Aluminum

d)

Boron

28.

How many valence electrons?

a)

2

b)

3

c)

4

d)

5

29.

How many valence electrons?

a)

2

b)

4

c)

6

d)

8

30.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
None of these
31.
How many electrons does potassium K contain? (click to see image)
a)
19
b)
39
c)
20
d)
40
32.
How many electrons should Hydrogen have around its Lewis dot model?
a)
1
b)
2
c)
7
d)
8
33.
How many electrons should Carbon have around its Lewis dot model?
a)
1
b)
3
c)
4
d)
5
34.

How many electrons should Boron have around its Lewis dot model?

a)

1

b)

3

c)

5

d)

7

35.

How many electrons can go in the first energy level?

a)

2

b)

8

c)

18

d)

32

36.

How many electrons can go in the Second energy level?

a)

2

b)

8

c)

18

d)

32

37.

What is a Lewis Dot Structure?

a)

It shows all of the particles in the atom.

b)

Contains protons and neutrons

c)

Only shows the element symbol and it's outer most electron shell

d)

Contains protons and electrons

38.

What state of matter?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma!!!

39.

What state of matter?

a)

Solid

b)

Liquid

c)

Gas

40.

What state of matter?

a)

Solid

b)

Liquid

c)

Gas

41.
If the tops were removed from the cylinders, the following would happen:
a)
The solid would fly out of the container
b)
The liquid would fly out of the container.
c)
The gas would fly out of the container.
d)
They ALL would fly out of the container.

Similar Resources on Wayground

Classification Test Quizizz 2022

37 questions

Classification Test Quizizz 2022

quiz

Worksheet

•

7th Grade

Grade 6: CH 7- Characteristics of living things

40 questions

Grade 6: CH 7- Characteristics of living things

quiz

Worksheet

•

6th Grade

Cellular Respiration/Photosynthesis/Diversity/Seasons Test

36 questions

Cellular Respiration/Photosynthesis/Diversity/Seasons Test

quiz

Worksheet

•

7th Grade

ÔN GHK I KHTN 7( Lê Thánh Tông)

41 questions

ÔN GHK I KHTN 7( Lê Thánh Tông)

quiz

Worksheet

•

7th Grade

Heat and Temp: Topic 1 + 2 Review

40 questions

Heat and Temp: Topic 1 + 2 Review

quiz

Worksheet

•

7th Grade - University

NATURAL SCIENCE TEST: All about food

40 questions

NATURAL SCIENCE TEST: All about food

quiz

Worksheet

•

3rd - 12th Grade

UNIT 2 - Nutrition

45 questions

UNIT 2 - Nutrition

quiz

Worksheet

•

6th Grade

Unit 1: Measurements and Scientific Experimentation

45 questions

Unit 1: Measurements and Scientific Experimentation

quiz

Worksheet

•

6th - 7th Grade