wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Atoms

Total questions: 19

Worksheet time: 13mins

Name
Class
Date
1.

The atomic mass is the

a)

number of protons and neutrons inside the nucleus

b)

number or electrons or protons

c)

number of protons, neutrons and electrons

2.

All matter is made of _________.

a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
3.
What is at the center of every atom?
a)
An electron
b)
A compound
c)
A molecule
d)
A nucleus
4.
The positively charged particles of an atom are the ________.
a)
electrons
b)
protons
c)
neutrons
d)
protons & neutrons
5.
The particles with no charge in an atom are the _______.
a)
electrons
b)
neutrons
c)
protons
d)
protons and neutrons
6.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
DNA and RN
7.

How many atoms of hydrogen are in this compound?

a)

1

b)

2

c)

3

d)

4

8.

How man atoms of carbon are there?

a)

1

b)

2

c)

3

d)

4

9.

How many atoms of Iron are in this compound?

a)

1

b)

2

c)

3

d)

4

10.

How many atoms of hydrogen are in

C6H12O6

a)

6

b)

12

c)

18

d)

2

11.

A substance made up of atoms of two or more different elements joined by chemical bonds

a)

Molecule

b)

compound

c)

polar covalent bond

d)

nonpolar covalent bond

12.

All matter is made of _________.

a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
13.

Which sub-atomic particles are in the nucleus?

a)

protons, neutrons

b)

neutrons, electrons

c)

protons, electrons

d)

protons, neutrons, electrons

14.

What is this table

a)

Elements

b)

Table of elements

c)

Periodic tables of elements

15.

What is the symbol for Carbon

a)

Ca

b)

C

c)

Co

d)

Cr

16.
Elements are made of 
a)
many types of atoms 
b)
the periodic table
c)
one type of atom 
d)
molecules 
17.
Two or more atoms chemically bonded together are called a
a)
atom
b)
element
c)
molecule
d)
mixture
18.
Which is an electron?
a)
A
b)
B
c)
C
19.

Identifies the number of protons in an atoms nucleus.

a)

Electron Cloud

b)

Atomic Theory

c)

Atomic Number

d)

Mass Number