wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Atoms and Atomic Theory

Total questions: 43

Worksheet time: 40mins

Name
Class
Date
1.

All matter is made of _________.

a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
2.
What is at the center of every atom?
a)
An electron
b)
A compound
c)
A molecule
d)
A nucleus
3.
The positively charged particles of an atom are the ________.
a)
electrons
b)
protons
c)
neutrons
d)
protons & neutrons
4.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
DNA and RN
5.

Atoms are made up of ________________

a)

energy

b)

electrons

c)

subatomic particles

d)

gasses

6.

The subatomic particles that make up an atom.

a)

solid, liquid, gas

b)

electrons, protons, nucleus

c)

energy, protons, nucleus

d)

electrons, protons, neutrons

7.

__________ are negatively charged particles that are in the orbitals around the nucleus.

a)

protons

b)

nucleus

c)

neutrons

d)

electrons

8.

A proton has a ___________ charge.

a)

positive

b)

negative

c)

neutral

d)

massive.

9.

An electron has a _________ charge

a)

positive

b)

neutral

c)

negative

d)

massive

10.

A neutron has _________ charge or is ________.

a)

negative ... neutral

b)

positive .... neutral

c)

no .... negative

d)

no ... neutral

11.
Which is an electron?
a)
A
b)
B
c)
C
12.

The smallest part of any element. Made up of protons, neutrons and electrons.

a)

Atom

b)

AMU

c)

Ion

d)

Isotope

13.

The negatively charged particles in an atom

a)

Proton

b)

Electron

c)

Neutron

d)

Electron Cloud

14.

Which TWO of the following subatomic particles are inside the nucleus?

a)

protons

b)

electrons

c)

neutrons

d)

There are no subatomic particles in the nucleus of an atom.

15.
The particles with no charge in an atom are the _______.
a)
electrons
b)
neutrons
c)
protons
d)
protons and neutrons
16.

How many atoms of Hydrogen are in H2O

a)

1

b)

2

c)

3

d)

more than 3

17.

How many atoms of Hydrogen are in this compound?

a)

1

b)

2

c)

3

d)

4

18.

All matter is made of _________.

a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
19.

The subatomic particles that make up an atom.

a)

solid, liquid, gas

b)

electrons, protons, nucleus

c)

energy, protons, nucleus

d)

electrons, protons, neutrons

20.

What is the chemical symbol for Hydrogen

a)

H

b)

He

c)

Hy

d)

Hg

21.

What is this subatomic particle that has positive charge?

a)

Electron

b)

Neutron

c)

Proton

d)

Megatron

22.

All matter is made of what

a)

energy

b)

atoms

c)

electrons

d)

compounds

23.

The positive particles of an atom are

a)

electrons

b)

positrons

c)

neutrons

d)

protons

24.

The central region of an atom where its neutrons and protons are is its

a)

nucleus

b)

electron cloud

c)

core

d)

center

25.

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

a)

negatrons

b)

electrons

c)

neutrons

d)

protons

26.

True or False: Neutrons have a negative charge

a)

True

b)

False

27.

A particle that moves around the nucleus is a(n)...

a)

Proton

b)

Neutron

c)

Electron

d)

Quark

28.

What subatomic particles would you find in the nucleus of an atom?

a)

Protons only

b)

Protons and Neutrons

c)

Neutrons and Electrons

d)

Protons and Electrons

29.

What subatomic particle(s) would be found orbiting the nucleus?

a)

Neutrons only

b)

Electrons only

c)

Protons and Neutrons

d)

Protons and Electrons

30.

Protons and electrons balance the charge of an atom.

a)

True

b)

False

31.

Most of the mass in an atom is concentrated in the...

a)

electrons

b)

nucleus

c)

protons

d)

empty space

32.

Electrons are___________

a)

Extremely small even in comparison to protons.

b)

part of the nuclues.

c)

Super Positive, like cheerleaders!

d)

very large

33.

Anything that has mass and takes up space is called

a)

heterogeneous

b)

homogeneous

c)

matter

d)

density

34.

An atoms overall charge is

a)

positive

b)

depends on its mood

c)

neutral

d)

negative

35.
The positive particles of an atom are 
a)
Electrons 
b)
Positrons 
c)
Neutrons 
d)
Protons 
36.
The central region of an atom where its neutrons and protons are is its _______.
a)
Nucleus 
b)
Electron cloud
c)
Core 
d)
Center 
37.
Particles in an atom that are neutral and have no charge are ______. 
a)
Negatrons 
b)
Electrons 
c)
Neutrons 
d)
Protons 
38.
Which of the following is a negatively charged subatomic particle?
a)
Electron
b)
Proton
c)
Neutron
d)
Quark
39.
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
40.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Some are in the nucleus and some in the electron cloud.
d)
They are moving everywhere.
41.
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
42.

Atoms are made up of mostly

a)

Protons

b)

Neutrons

c)

Electrons

d)

Empty Space

43.

Electrons move around the nucleus

a)

very slowly

b)

near the speed of light

c)

they don't move

Similar Resources on Wayground

MP1 Test 2 Review

43 questions

MP1 Test 2 Review

quiz

Worksheet

•

7th Grade

Part 1 - Super Awesome 8th Grade Science EOG Review Booklet

43 questions

Part 1 - Super Awesome 8th Grade Science EOG Review Booklet

quiz

Worksheet

•

8th Grade

Element & Compound Periodic Table and Metal/Nonmental/Metalloid

41 questions

Element & Compound Periodic Table and Metal/Nonmental/Metalloid

quiz

Worksheet

•

6th Grade

Earth Space Chapter 28 Review

40 questions

Earth Space Chapter 28 Review

quiz

Worksheet

•

6th - 8th Grade

Spring Semester Recap 2019

40 questions

Spring Semester Recap 2019

quiz

Worksheet

•

6th Grade

Genetics and Punnett Squares

38 questions

Genetics and Punnett Squares

quiz

Worksheet

•

7th - 8th Grade

1st quarter vocab

40 questions

1st quarter vocab

quiz

Worksheet

•

6th Grade

Cell Division

40 questions

Cell Division

quiz

Worksheet

•

7th - 8th Grade