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Chapter Twenty Five: Nuclear Chemistry Test Review

Total questions: 60

Worksheet time: 1hrs 16mins

Name
Class
Date
1.

What is the spontaneous emission from the nucleus of an atom?

a)

Positron

b)

Alpha Particle

c)

Beta Particle

d)

Radioactivity

e)

Transmutation

2.

What is a emitted helium nucleus?

a)

Positron

b)

Alpha Particle

c)

Beta Particle

d)

Radioactivity

e)

Transmutation

3.

What is a energetic electron from a decomposed nucleus?

a)

Positron

b)

Alpha Particle

c)

Beta Particle

d)

Radioactivity

e)

Transmutation

4.

What are high-energy photons emitted by a radioisotope?

a)

Positron

b)

Alpha Particle

c)

Beta Particle

d)

Gamma Radiation

e)

Transmutation

5.

What is a particle with a charge of +1?

a)

Positron

b)

Alpha Particle

c)

Beta Particle

d)

Gamma Radiation

e)

Transmutation

6.

What is the conversion of an atom of one element to an atom of another element?

a)

Radioactivity

b)

Alpha Particle

c)

Beta Particle

d)

Gamma Radiation

e)

Transmutation

7.

What is an atom with an unstable nucleus?

a)

Fission

b)

Fusion

c)

Radioisotope

d)

Nuclear Moderation

8.

What is the combination of two nuclei to form a nucleus of greater mass?

a)

Fission

b)

Fusion

c)

Radioisotope

d)

Nuclear Moderation

9.

What is the process that decreases the number of slow-moving electrons?

a)

Fission

b)

Neutron Absorption

c)

Radioisotope

d)

Nuclear Moderation

10.

What is the splitting of nucleus into smaller fragments?

a)

Fission

b)

Neutron Absorption

c)

Radioisotope

d)

Nuclear Moderation

11.

What is the process that slows down neutrons so a reactor fuel can capture then to continue a chain reaction?

a)

Fission

b)

Neutron Absorption

c)

Radioisotope

d)

Nuclear Moderation

12.

What is the radiation detector that makes use of a phosphor coated surface?

a)

Geiger Counter

b)

Neutron Absorption

c)

Radioisotope

d)

Scintillation Counter

13.

In a nuclear decay process a ___ isotope undergoes nuclear decay until a ___ isotope is reached.

a)

stable, stable

b)

unstable, unstable

c)

stable, unstable

d)

unstable, stable

14.

What is the charge on an beta particle?

a)

0

b)

-1

c)

+2

d)

+1

15.

What is the charge on a gamma ray?

a)

0

b)

-1

c)

+2

d)

+1

16.

Which of the following is the same as an beta particle?

a)

Electron

b)

Helium-4 Nucleus

c)

Proton

d)

Photon

17.

Which of the following is the same as an alpha particle?

a)

Electron

b)

Helium-4 Nucleus

c)

Proton

d)

Photon

18.

Which of the following is the same as a gamma ray?

a)

Electron

b)

Helium-4 Nucleus

c)

Proton

d)

Photon

19.

What is the change in atomic number when an alpha particle is emitted?

a)

Decreases by 4

b)

Decreases by 2

c)

Increases by 4

d)

Increases by 2

20.

What is the change in mass number when an alpha particle is emitted?

a)

Decreases by 4

b)

Decreases by 2

c)

Increases by 4

d)

Increases by 2

21.

What is the change in mass number when an beta particle is emitted?

a)

Decreases by 1

b)

Does Not Change

c)

Increases by 1

d)

Increases by 2

22.

What is the change in atomic number when an beta particle is emitted?

a)

Decreases by 1

b)

Does Not Change

c)

Increases by 1

d)

Increases by 2

23.

What is the change in atomic number when a gamma ray is emitted?

a)

Decreases by 1

b)

Does Not Change

c)

Increases by 1

d)

Increases by 2

24.

What is the change in mass number when a gamma ray is emitted?

a)

Decreases by 1

b)

Does Not Change

c)

Increases by 1

d)

Increases by 2

25.

What is the most penetrating form of radiation?

a)

Alpha Radiation

b)

Beta Radiation

c)

Gamma Radiation

26.

What is the least penetrating form of radiation?

a)

Alpha Radiation

b)

Beta Radiation

c)

Gamma Radiation

27.

What type of radiation is likely to occur when the ratio of neutrons is above the band of stability?

a)

Alpha Radiation

b)

Beta Radiation

c)

Neutron Emission

d)

Positron Emission

28.

What type of radiation is likely to occur when the ratio of neutrons is below the band of stability?

a)

Alpha Radiation

b)

Beta Radiation

c)

Neutron Emission

d)

Positron Emission

29.

What type of radiation is likely to occur when an atom has more than 83 protons?

a)

Alpha Radiation

b)

Beta Radiation

c)

Neutron Emission

d)

Positron Emission

30.

How is an electron different than a positron?

a)

An electron has no electrical change, unlike a positron

b)

An electron has a charge opposite that of an positron

c)

A positron has less mass than an electron

d)

A positron has greater mass than an electron

31.

What product of fission is required to maintain a chain reaction?

a)

Alpha Particle

b)

Gamma Rays

c)

Beta Particle

d)

Two or more Neutrons

32.

What is produced when fusion occurs in the sun?

a)

Helium-3

b)

Hydrogen-3

c)

Hydrogen-1

d)

Helium-4

33.

Why are spent fuel rods stored in holding tanks underwater?

a)

Water dissolves the nuclear waste so the rods can be handled.

b)

Water increases the rate of the reaction.

c)

Water cools the rods and acts as a shield to reduce the radiation levels.

d)

Water decreases the rate of the reaction.

34.
What is the symbol for an alpha particle?
a)
42He
b)
0-1e
c)
0+1 e
d)
10n
35.

What is the symbol for an beta particle?

a)

42He

b)

0-1e

c)

0+1 e

d)

10n

36.

Which of the following statements is true?

a)

Controlled nuclear chain reactions take place in nuclear reactors

b)

Controlled nuclear chain reactions are always fusion reactions.

c)

Controlled nuclear chain reactions produce no radioactive by-products.

d)

Controlled nuclear chain reactions are characteristic of atomic bombs.

37.

Which of the following statements is true?

a)

Nuclear fusion occurs at low temperatures.

b)

Nuclear fusion can be controlled in a laboratory.

c)

Nuclear fusion is used in medicine.

d)

Nuclear fusion takes place in the sun.

38.

How many protons are in an alpha particle?

a)

4

b)

0

c)

2

d)

1

39.

How many neutrons are in an alpha particle?

a)

4

b)

0

c)

2

d)

1

40.

How many electrons are in an alpha particle?

a)

4

b)

0

c)

2

d)

1

41.
Balance the following equation:
146C --> 0-1e + ________
a)
145B
b)
146C
c)
147N
d)
42He
42.
Detects radiation by counting electric pulses carried by gas atoms ionized by radiation
a)
Geiger-Muller counter
b)
Scintillation counter
c)
Film badge
d)
Radioactive detective
43.
If you start out with 100 grams of a radioisotope, how much remains after 2 half-lives?
a)
100 grams
b)
75 grams
c)
50 grams
d)
25 grams
44.
What particle completes this reaction?
a)
alpha particle
b)
beta particle
c)
gamma particle
d)
neutron
45.
The time needed for half of a radioactive sample to decay is called its __________.
a)
decay period
b)
period
c)
transmutation time
d)
half-life
46.
Barium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?
a)
0.25g
b)
2.5g
c)
25g
d)
80g
47.
Which type of nuclear radiation is being emitted here along with Rn
a)
alpha
b)
beta
c)
gamma
d)
none
48.
If Thorium-234 undergoes a beta decay, What element will be left in its place?
a)
Actinium-234
b)
Thorium-233
c)
Protactinium-234
d)
Radium-230
49.

If we start off with element 5024X after an beta decay we get another element Y that looks like

a)

5023Y

b)

4622Y

c)

5025Y

d)

5024Y

50.
If we start off with element 5024X after an alpha decay we get another element Y that looks like
a)
5022Y
b)
 4622Y
c)
4820Y
d)
5426Y
51.
The technetium-99 isotope has a half-life of 6.0 hours. If 100.0 mg were injected into a patient how much remains after 18 hours?
a)
33.0 mg
b)
12.5 mg
c)
.33 mg
d)
15.8 mg
52.
Balance the following equation:
146C --> 0-1e + ________
a)
145B
b)
146C
c)
147N
d)
42He
53.
What is the missing isotope that will balance the following nuclear equation?
94Be  +  11H →  _____  +  42He
a)
105B
b)
105Ne
c)
63Li
d)
63C
54.
What process is modeled by the equation?
a)
alpha decay
b)
beta decay
c)
fission
d)
fusion
55.
What process is modeled with this equation?
a)
alpha decay
b)
beta decay
c)
fission
d)
fusion
56.
What type of nuclear equation is this?
a)
fusion
b)
fission
c)
alpha
d)
beta
57.
The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed?
a)
100.0g
b)
50.0g
c)
12.5g
d)
8.5g
58.
After the third half-life, how much of the sample is left?
a)
1/2
b)
1/3
c)
1/16
d)
1/8
59.
The half life of iodine-131 is 8 days. What fraction of an iodine-131 sample will remain after 40 days?
a)
1/2
b)
1/64
c)
1/5
d)
1/32
60.
The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?
a)
3.0g
b)
0.25mg
c)
0.3g
d)
0.25g

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