wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Physical Science Unit 2 Review

Total questions: 90

Worksheet time: 2hrs 38mins

Name
Class
Date
1.

Which subatomic particle has a positive charge?

a)

proton

b)

neutron

c)

electron

d)

nucleus

2.

Which subatomic particle has a negative charge?

a)

proton

b)

neutron

c)

electron

d)

nucleus

3.

Which subatomic particle has no charge, also known as a neutral charge?

a)

proton

b)

neutron

c)

electron

d)

nucleus

4.

What is the center of an atom called?

a)

The neutron

b)

The proton

c)

The electron cloud

d)

The nucleus

5.

The nucleus of an atom contains which subatomic particles?

a)

protons and electrons

b)

protons and neutrons

c)

electrons and neutrons

d)

protons, electrons, and neutrons

6.

How many neutrons does this isotope of lithium have?

a)
8
b)
3
c)
4
d)
5
7.
What electrical charge does a proton have?
a)
+1
b)
0
c)
-1
d)
+2
8.

What is the relative mass of a neutron?

a)

1 amu

b)

0 amu

c)

-1 amu

d)

+2 amu

9.
Which particle is negatively charged?
a)
proton
b)
atom
c)
neutron
d)
electron
10.
In order for an atom to be neutral what has to be true?
a)
The atom has more protons than neutrons
b)
The atom has more neutrons than protons
c)
The atom has the same number of protons and neutrons
d)
The atom has the same number of protons and electrons
11.
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
12.

What is the atomic mass of Neon?

a)

10

b)

20.18

c)

10.18

d)

30.18

13.

How many electrons does a neutral Copper atom have?

(a)  

14.

How many electrons does a neutral Hydrogen atom have?

a)

1

b)

2

c)

3

d)

0

15.

How many electrons does a neutral atom of Krypton have?

(a)  

16.
What is the atomic number for an element with 41 neutrons and a mass number of 80?
a)
39
b)
41
c)
80
d)
121
17.

How many protons does phosphorus have?

(a)  

18.

An element is defined by its number of ...

a)

protons

b)

electrons

c)

neutrons

d)

protons + electrons

19.

What is the atomic number for an element with three protons?

(a)  

20.

A neutral atom of the element sodium has (a)   electrons.

21.
The atomic number is equal to _.
a)

the number of protons

b)

the number of neutrons

c)
the total number of protons and neutrons
d)

the number of protons, neutrons and electrons

22.

The mass number is equal to _.

a)
the number of protons only
b)
the number of neutrons only
c)
the total number of protons and neutrons
d)
the number of protons, neutrons, and electrons.
23.

Which of the following describes isotopes?

a)

atoms with the same number of protons but different neutrons

b)

atoms with the same number of protons but different electrons

c)

atoms with the same number of neutrons but different number of protons

d)

atoms with the same number of neutrons but different number of electrons

24.
Different isotopes have...
a)
different masses
b)
different atomic numbers
c)
different electrons
d)
different protons
25.

What is the mass number of the pictured isotope?

a)
2
b)
4
c)
6
d)

8

26.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
27.
What is the mass number defined as?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
28.
What is the atomic number of this atom?
a)
1
b)
3
c)
4
d)
7
29.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

30.

How many neutrons does an atom of the isotope Neon-22 have? (tap to enlarge the image)

a)

12

b)

10

c)

22

d)

20

31.

ALL atoms of the same element ALWAYS have:

a)

same number of protons

b)

same number of neutrons

c)

different number of electrons

d)

different number of protons

32.
which atom has  4 neutrons?
a)
Li-6
b)
Li-7
c)
Li-8
d)
they have the same # of neutrons
33.
How many neutrons does an atom of the isotope Neon-22 have?
a)
12
b)
10
c)
22
d)
20
34.
Takes two small nuclei and combines them into a larger nucleus
a)
fission
b)
fusion
35.
This is an example of...
a)
Fission  reaction
b)
Fusion reaction
c)
Decomposition reaction
d)
Decay
36.
_________ happens naturally due to an unstable nucleus.
a)
fission
b)
fusion
c)
radioactive decay
37.
What is a benefit of nuclear fission?
a)
The ability to absorb energy
b)
The ability to release tremendous amounts of energy
c)
The ability to produce more energy than nuclear fusion
d)
There are no beneficial aspects of nuclear fission
38.
Very high temperature and pressure is required for:
a)
Fission
b)
 Fusion
c)
Radioactive Decay
39.
Which of the following is true about nuclear fusion?
a)
It is easy to implement.
b)
It produces less energy than nuclear fission.
c)
It produces more energy than nuclear fission.
d)
It has the ability to occur easily in everyday life.
40.
The splitting of a nucleus into smaller nuclei is
a)
fusion
b)
fission
c)
decay
d)
gamma radiation
41.
Alpha particles have a _____ charge.
a)
+2
b)
0
c)
+4
d)
-1
42.
The beta particle has a charge of ...........
a)
+1
b)
-1
c)
0
d)
+2
43.
Which type of radioactive decay is occurring in this equation? 
a)
Alpha decay
b)
beta decay
c)
gamma decay
d)
positron emission
44.
This is an example of...
a)
Fission  reaction
b)
Fusion reaction
c)
Decomposition reaction
d)
Decay
45.
This is an example of ---
a)
Radioactive Decay
b)
Nuclear Fission
c)
Nuclear Fusion
d)
Fossil fuel reaction
46.

Which type of reaction does the diagram illustrate?

a)

Fission

b)

Fusion

c)

Alpha Decay

d)

Beta Decay

47.

Which reaction represents fusion?

a)
b)
c)
d)
48.

Which reaction represents fission?

a)
b)
c)
d)
49.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

50.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

51.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

52.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

53.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

54.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

55.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

56.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

57.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

58.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

59.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

60.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

61.

Does the model show fusion, fission or neither?

a)

fusion

b)

fission

c)

neither

62.
The rate at which a radioactive element decays is its ____.
a)
quarter life
b)
whole life
c)
wonderful life 
d)
half life
63.

Energy in the sun is produced when two hydrogen atoms form a helium atom. This is an example of a nuclear ____ reaction.

a)
fusion
b)
fission
c)

decay

64.
What makes something radioactive?
a)
elements with an atomic number above 81
b)
an unstable nucleus
c)
contaminated sewage
d)
It decays over time
65.
If the half life of a radioactive element is 100yrs, how long would it take for the radioactivity to reduce by one half?
a)
200yrs
b)
100yrs
c)
50yrs
d)
300yrs
66.

A certain radioactive sample has a half life of 2 years. After 6 years, how much of the sample is left?

a)

1/2

b)

1/3

c)

1/16

d)

1/8

67.

The decay particles, in order of most to least penetrating power, are:

a)
Alpha , Beta,  Gamma
b)
Beta , Gamma , Alpha
c)
Gamma, Beta, Alpha
d)
Gamma, Alpha, Beta
68.

Which type of radiation releases an electron?

a)

Alpha radiation

b)

Beta radiation

c)

Gamma radiation

d)

Theta radiation

69.

What type of decay is shown here

23892U ---> 23490Th + 42He.

a)

alpha

b)

beta

c)

gamma

70.

Identify the type of nuclear decay shown here

21483Bi → 0-1e + 21484Po

a)

alpha

b)

beta

c)

gamma

71.
The type of radioactive particle that can be stopped by a sheet of paper is the ____.
a)
alpha particle
b)
beta particle
c)
gamma ray
d)
uranium
72.

External-beam radiation therapy for cancer patients is delivered in the form of a high radiation photon beam directed at cancer cells. What type of radiation provides the high energy photons that can penetrate deep into patients’ tissues?

a)

Alpha

b)

Beta

c)

Gamma

73.

Iodine-131 has a half life of 8.07 days. What percent of a sample of Iodine-131 is left unchanged after 16.14 days?

a)

50%

b)

25%

c)

12.5%

d)

6.25%

74.

The radioactive isotope Nickel-63 has a half life of 100 years. How much of a 10 gram sample remains after 300 years?

a)

1 gram

b)

1.25 grams

c)

0.50 grams

d)

0.075 grams

75.

The term given to unstable radioactive atoms.

a)

Parent

b)

Daughter

c)

Half Life

d)

Igneous

76.

The % of the parent isotope remaining after 3 Half Lives.

a)

50%

b)

25%

c)

12.5%

d)

6.25%

77.

The % of the parent isotope remaining after 2 Half Lives.

a)

50%

b)

25%

c)

12.5%

d)

6.25%

78.

After one half life, a sample will begin to have more of the parent isotope than the daughter isotope.

a)

TRUE

b)

FALSE

79.

The diagram shows 32 atoms.

16 of the Red are parent isotopes

16 of the Green are daughter isotopes

How many half-lives have occurred?

a)

0

b)

1

c)

2

d)

3

80.

The diagram shows 32 atoms

8 of the Red are parent isotopes

24 of the Green are daughter isotopes

How many half-lives have occurred?

a)

0

b)

1

c)

2

d)

3

81.

What is the Half life of this isotope?

a)

5 seconds

b)

10 seconds

c)

15 seconds

d)

20 seconds

82.

The Half Life of Californium-252 is 5 years.

a)

TRUE

b)

FALSE

83.

What type of decay releases 2 protons and 2 neutrons?

a)

alpha

b)

beta

c)

gamma

84.

What type of particle has a +2 charge?

a)

alpha

b)

beta

c)

gamma

85.

What type of particle has a -1 charge?

a)

alpha

b)

gamma

c)

beta

86.

The nucleus of an atom is made up of ___________________.

a)

Protons and Neutrino

b)

Neutrons and Electrons

c)

Protons and Neutrons

d)

Protons and Electrons

87.

ALL atoms of the same element have:

a)

same number of proton

b)

same number of nucleon

c)

different number of neutron

d)

different number of electron

88.

What subatomic particle changes in an ion?

a)

The number of electrons

b)

The number of protons

c)

The number of neutrons

89.
The following element key shows how many protons?
a)
16
b)
15.999
c)
Oxygen
d)
8
90.

Why does an atom of the element sodium have a charge of zero?

a)

There are 12 neutrons.

b)

It has 11 p+ and 11 e-.

c)

It has 11 p+ and 10 e-.

Similar Resources on Wayground

AP Chemistry: Final Review

89 questions

AP Chemistry: Final Review

quiz

Worksheet

•

10th - 12th Grade

Newtons Laws of Motion Exam

85 questions

Newtons Laws of Motion Exam

quiz

Worksheet

•

9th Grade

2nd Semester Chemistry Final Exam

86 questions

2nd Semester Chemistry Final Exam

quiz

Worksheet

•

10th - 12th Grade

Chapter 1 & 2 Review (A&P1)

88 questions

Chapter 1 & 2 Review (A&P1)

quiz

Worksheet

•

12th Grade - University

Atomic History & Nuclear Reactions

88 questions

Atomic History & Nuclear Reactions

quiz

Worksheet

•

10th Grade

Unit 3 Test Review

88 questions

Unit 3 Test Review

quiz

Worksheet

•

9th - 12th Grade

PreAP Chem Fall Review

92 questions

PreAP Chem Fall Review

quiz

Worksheet

•

10th - 12th Grade

Chemistry Spring Review 2022

85 questions

Chemistry Spring Review 2022

quiz

Worksheet

•

10th - 12th Grade