wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Atomic Structure Bio

Total questions: 55

Worksheet time: 34mins

Name
Class
Date
1.

Which of the following is responsible for the mass of an atom?

a)

Neutrons and electrons

b)

Protons and neutrons

c)

Protons only

d)

Neutrons only

2.

A subatomic particle with a negative charge.

a)

Protons

b)

Neutrons

c)

Electrons

d)

Isotope

3.

The number of _______ in one atom of an element determines the atom's identity.

a)

Protons

b)

Electrons

c)

Neutrons

d)

Isotope

4.

The atomic _____ tells you how many protons are there in an atom.

a)

size

b)

mass

c)

weight

d)

number

5.

A negatively charged particle, located in the outermost shell of an atom.

a)

Valence electron

b)

Muon

c)

Neutrino

d)

Lepton

6.

An element which has the same number of protons and electrons having no net charge.

a)

Isotope

b)

Ion

c)

Neutral atom

d)

Electron

7.

Which particle has a positive electrical charge?

a)

proton

b)

neutron

c)

electron

8.

Which of the three particles has the smallest mass?

a)

proton

b)

neutron

c)

electron

9.

Which particles make up the nucleus of an atom? (you can choose more than one answers)

a)

proton

b)

electron

c)

neutron

10.

The size of the negative charge of an electron is exactly the same as the size of the positive charge on a proton. What is the overall charge of the helium atom shown in the diagram?

a)

positive

b)

negative

c)

neutral

11.

Electrons have less mass than protons do

a)

true

b)

false

12.

Protons have a negative electrical charge

a)

true

b)

false

13.

Electrons are found in the nucleus of the atom

a)

true

b)

false

14.

Neutrons have the same mass as protons do

a)

true

b)

false

15.

Subatomic particles that have a negative charge

a)

electrons

b)

protons

c)

quarks

d)

neutrons

16.

The number 16 for the atomic element sulfur is the

a)

ionic number

b)

isotope

c)

atomic mass

d)

atomic number

17.

How many protons does sulfur have?

a)

32

b)

16

c)

48

d)

12

18.

How many electrons does sulfur have

a)

16

b)

32

c)

48

d)

12

19.

Subatomic particle that has a positive charge

a)

electron

b)

poitron

c)

neutron

d)

proton

20.

The center of an atom is called the ________________.

a)

electron cloud

b)

nucleus

c)

neutrion

d)

nuetron

21.

What is the atomic number of this atom?

a)

1

b)

3

c)

4

d)

7

22.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

23.
Most of the mass in an atom is made up of _____________________?
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
electrons and quarks
24.
What does the C represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
25.

What does the 6 represent?

a)

Atomic mass

b)

atomic number

c)

chemical symbol

d)

element name

26.

An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.

a)

20

b)

10

c)

35

d)

25

27.

How many electrons does this atom have?

a)

2

b)

4

c)

6

d)

10

28.
Where is most of the mass in an atom located?
a)
in the nucleus
b)
in the protons
c)
in the neutrons
d)
in the electrons
29.
What is the atomic number of the atom pictured? 
a)
9
b)
10
c)
18
d)
19
30.

Which of the following determines the identity of an element?

a)

number of protons

b)

atomic mass

c)

number of neutrons

d)

number of shells

31.

What is a subatomic particle with a positive charge that is in the nucleus of an atom?

a)

neutron

b)

proton

c)

electron

d)

valence electron

32.

What is a subatomic particle with a negative charge? It is found in the electron cloud surrounding the nucleus.

a)

neutron

b)

proton

c)

electron

d)

electron cloud

33.

What is a subatomic particle without an electric charge, located in the nucleus of an atom?

a)

neutron

b)

proton

c)

electron

d)

valence electron

34.

What mass does a neutron have?

a)

1 amu

b)

0 amu

c)

-1 amu

d)

+2 amu

35.

How many protons does an aluminum atom have?

a)

27

b)

14

c)

40

d)

13

36.

How many electrons does a sodium atom have?

a)

23

b)

11

c)

12

d)

34

37.
Atoms of the same element must always have the same number of _________
a)
electrons
b)
neutrons
c)
isotopes
d)
protons
38.

What element has 9 protons, 9 electrons, and 10 neutrons?

a)

nitrogen

b)

oxygen

c)

fluorine

d)

neon

39.
How many electrons does an atom with 8 protons have?
a)
8
b)
16
c)
15.99
d)
24
40.
Which of the following elements has 18 electrons?
a)
Flourine
b)
Helium
c)
Argon
d)
Chlorine
41.
Sodium has an atomic number of 11, how many protons does this atom have?
a)
22
b)
11
c)
12
d)
2
42.
How many protons are in Zirconium (Zr) ?
a)
40
b)
91
c)
30
d)
65
43.
Which element has 31 protons ?
a)
Gallium 
b)
Germanium
c)
Gadolinium
d)
Polonium
44.
Which element has 73 protons ?
a)
Titanium
b)
Tantulum
c)
Thallium
d)
Thorium
45.
Which element has 5 more protons than Oxygen (O)?
a)
Aluminum
b)
Lithium
c)
Chlorine
d)
Silicon
46.
How many protons are in Beryllium?
a)
4
b)
9
c)
5
d)
2
47.
What is the charge of the neutron?
a)
Negative
b)
Positive
c)
electrical charge
d)
Neutral (no charge)
48.
What is the formula to solve for the neutron?
a)
Mass + Atomic Number= Neutrons
b)
Mass x Atomic Number = Neutrons
c)
Mass - Atomic Number = Neutrons
d)
Mass + Number of Protons = Neutron
49.
How many neutrons does the an element with an atomic number of 3 and a mass of 6.9 contain?
a)
6.9
b)
4
c)
3
d)
7
50.
Which is a neutron?
a)
A
b)
B
c)
C
51.

How many valence electrons does carbon have?

a)

4

b)

5

c)

6

d)

7

52.
Valence electrons are the...
a)
Innermost electrons
b)
Middle electrons
c)
Outermost electrons
d)
Any electrons
53.

USE THE PERIODIC TABLE

How many valence electrons does sodium have?

a)

1

b)

2

c)

3

d)

4

54.
Elements in the same column of the periodic table always have the same # of _______ as one another.
a)
Protons
b)
Neutrons
c)
Electrons
d)
Valence Electrons
55.
How many valence electrons are in an atom of Ba?
a)
2
b)
8
c)
4
d)
1

Similar Resources on Wayground

Biomolecules and LOO (with enzymes and proteins)

53 questions

Biomolecules and LOO (with enzymes and proteins)

quiz

Worksheet

•

9th Grade

Biodiversity & Adaptations

59 questions

Biodiversity & Adaptations

quiz

Worksheet

•

7th - 9th Grade

Unit 4 Test

50 questions

Unit 4 Test

quiz

Worksheet

•

9th Grade

Plant Tissues (9-O)

50 questions

Plant Tissues (9-O)

quiz

Worksheet

•

9th Grade

Unit 2 Review: Chemistry

50 questions

Unit 2 Review: Chemistry

quiz

Worksheet

•

9th - 10th Grade

SIMULACRO EXAMEN BIOLOGÍA 3º ESO

53 questions

SIMULACRO EXAMEN BIOLOGÍA 3º ESO

quiz

Worksheet

•

9th Grade

Midterm Review Unit 0-4

59 questions

Midterm Review Unit 0-4

quiz

Worksheet

•

9th - 10th Grade

Unit 11

58 questions

Unit 11

quiz

Worksheet

•

KG - University