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Atoms & Molecules

Total questions: 22

Worksheet time: 16mins

Name
Class
Date
1.
Which part of an atom is POSITIVELY charged?
a)
protons
b)
neutrons
c)
electrons
d)
atoms
2.
What part of an atom is NEGATIVELY charged?
a)
protons
b)
neutrons
c)
electrons
d)
atoms
3.
What is the term for combining 2 or more atoms together?
a)
atoms
b)
elements
c)
molecules
d)
compounds
4.

What is the picture displayed?

a)

Carbon Dioxide

b)

Water

c)

Gasoline

d)

Liquid Nitrogen

5.

All matter is made of what

a)

energy

b)

atoms

c)

electrons

d)

compounds

6.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
7.

The central region of an atom where its neutrons and protons are is called it's __________ .

a)

nucleus

b)

electron cloud

c)

core

d)

center

8.

This compound known as H2O is more commonly know as what?

a)

Water

b)

Carbon dioxide

c)

Hydrogen peroxide

d)

Toothpaste

9.
What is the picture displayed?
a)
Atom
b)
Element
c)
Molecule
d)
Compound
10.
What is the picture displayed?
a)
atom
b)
element
c)
molecule
d)
compound
11.
Which two particles make up the nucleus of an atom?
a)
protons and electrons
b)
protons and neutrons
c)
molecules and compounds
d)
neutrons and electrons
12.
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
13.
How many atoms are there in a molecule?
a)
no atoms
b)
1 or more atoms
c)
2 to thousands of atoms
d)
exactly 18 atoms
14.
What is the total number of atoms in an ammonia (NH3) molecule?
a)
1
b)
2
c)
3
d)
4
15.
When there is no subscript after an element's symbol, it means there are how many atoms of that element?
a)
0
b)
1
c)
2
d)
unknown
16.
How many hydrogen atoms are in a molecule of glucose/sugar (C6H12O6)?
a)
6
b)
12
c)
18
d)
24
17.
This subatomic particle of an atom has a POSITIVE charge.
a)
electron
b)
neutron
c)
proton
d)
amitron
18.
What are the basic building blocks for all matter?
a)
atoms
b)
elements
c)
compounds
d)
chemicals
19.

A molecule is _______________________.

a)

always blue.

b)

made of 200 or more atoms combined.

c)

made of 3 or more atoms combined.

d)

made of 2 or more atoms combined.

20.

Matter is something that has ___________ and _____________.

a)

mass and is always hungry.

b)

heat and is using up energy.

c)

mass and takes up space.

d)

heat and does not use energy.

21.

True or False: It is possible to see an atom with the naked eye.

a)

True

b)

False

22.

Which of the following is not a molecule:

a)
b)
c)

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