WorksheetsAtoms vs Molecules
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
Is this model of a molecule or atom?
a)
Atom
b)
Molecule
2.
What is the basic unit of matter and is the smallest particle of an element?
a)
Atoms
b)
Elements
c)
Compounds
d)
Molecules
3.
Two or more atoms chemically bonded together are called a
a)
atom
b)
element
c)
molecule
d)
mixture
4.
How many carbon atoms are there in a methane (CH4) molecule?
a)
0
b)
1
c)
4
d)
5
5.
How many hydrogen atoms are there in a water molecule (H20)?
a)
0
b)
1
c)
2
d)
3
6.
What is the total number of atoms in an ammonia (NH3) molecule?
a)
1
b)
2
c)
3
d)
4
7.
Carbon dioxide (CO2) contains how many atoms of oxygen?
a)
0
b)
1
c)
2
d)
3
8.
Is this model an atom or molecule?
a)
atom
b)
molecule
9.
How many hydrogen atoms are in a molecule of glucose/sugar (C6H12O6)?
a)
6
b)
12
c)
18
d)
24
10.
In this picture, there are
a)
only atoms
b)
only molecules
c)
A mixture of atoms and molecules
11.
What is shown in this model?
a)
atoms
b)
molecules
12.
Which picture shows only ATOMS?
a)
b)
c)
d)
13.
Which picture shows only MOLECULES?
a)
b)
c)
14.
Which picture shows a mixture of atoms and molecules?
a)
b)
c)
d)
15.
Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –
a)
a gas at room temperature.
b)
made of two different elements.
c)
given off by green plants.
100 %
