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Nuclear Chemistry

Total questions: 39

Worksheet time: 1hrs 24mins

Name
Class
Date
1.

Which type of radioactive decay only releases energy (not matter)?

a)

gamma decay

b)

alpha decay

c)

beta decay

2.

Positively charged particles that consist of two protons and two neutrons with the symbol 42He are called

a)

alpha particles

b)

beta particles

c)

gamma rays

d)

neutron emissions

3.
Two or more nuclei combine to form one larger nucleus in the process of nuclear _____.
a)
Fusion
b)
Fission
c)
Tracing
d)
Decay
4.
An electron that is emitted during radioactive decay is a
a)
neutron
b)
gamma ray
c)
alpha particle
d)
beta particle
5.
Which type of nuclear radiation is being emitted here?
a)
Alpha
b)
beta
c)
gamma 
d)
none
6.
The process of splitting heavier nuclei into lighter nuclei is called
a)
nuclear fission
b)
nuclear fusion
c)
radiation poisoning 
d)
chemotherapy
7.

The process in which lighter nuclei combine at extremely high temperatures and pressure, forming larger nuclei and releasing energy is

a)

fission

b)

fusion

c)

decay

d)

the scientific method

8.
Solve this equation for alpha decay.
88226Ra = ___ + 24He
a)
86222Rn
b)
89226Ac
c)
84224Po
d)
88225Ra
9.

Which process currently produces about 20% of electricity in the United States and about 90% in France?

a)

fission

b)

fusion

10.
nuclear decay that can be stopped by skin or paper
a)
gamma
b)
neutron
c)
 beta
d)
alpha
11.
Takes two small nuclei and combines them into a larger nucleus
a)
fission
b)
fusion
12.
Solve this equation for alpha decay.
85209At = ___ + 24He
a)
83205Bi
b)
86209Rn
c)
81207Tl
d)
85208At
13.

Gamma rays are a form of ionizing radiation that damage human cells/tissue.

a)

True

b)

False

14.
A continuous series of nuclear fission reactions (in which the reactants are also products) is a
a)
chain reaction
b)
chemical reaction
c)
fusion reaction
d)
alpha reaction
15.

The pictured nuclear process emits several neutrons. This process is called ____ .

a)

Fission

b)

Fusion

c)

Decomposition

d)

Combustion

16.
The fuel used in a nuclear fission reactor is uranium. Which of the following is required for fission to proceed?
a)
Neutrons must be removed from the reactor core.
b)
The reactor core must be very hot
c)
The uranium nuclei must absorb neutrons
d)
The uranium nuclei must absorb protons
17.

Which type of nuclear decay has the symbol 0+1 e

a)

alpha particle

b)

beta particle

c)

gamma ray

d)

positron

18.
Solve this equation for beta decay.
614C = ___ + -10e
a)
410Be
b)
714N
c)
210He
d)
613C
19.

What type of nuclear radiation is the most massive?

a)

Alpha particle (α)

b)

Beta particle (β)

c)

Gamma ray (γ)

d)

positron particles

20.
What type of nuclear radiation can be stopped by 10 mm of wood or 3 mm of aluminum?
By Lewis Ronald (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
a)
Alpha particle (α)
b)
Beta particle (β)
c)
Gamma ray (γ)
d)
Neutron emission
21.
What is the symbol of alpha radiation (α)?
a)
24He
b)
-10e
c)
00γ
d)
01n
22.
Identify the decay particle and decay process for this equation:
91231Pa = 89227Ac + ___
a)
24He, alpha decay
b)
24He, beta decay
c)
-10e, alpha decay
d)
-10e, beta decay
23.
What is the symbol of beta radiation (β)?
a)
24He
b)
-10e
c)
00γ
d)
01n
24.
What is the symbol of gamma rays (γ)?
a)
24He
b)
-10e
c)
00γ
d)
01n
25.
Which nuclear process is used now in nuclear power plants in the U.S.?
(image By Avda - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=26894741)
a)
fission
b)
fusion
c)
both fission and fusion
d)
neither fission nor fusion
26.

The amount of time it takes for half of a sample to undergo radioactive decay is called the _____.

a)

half-life

b)

half-decay

c)

half-nucleus

d)

half-rate

27.
When two light nuclei join together at extremely high temperatures, it is called what?
a)
radiation
b)
radioactivity
c)
fission
d)
fusion
28.

What does the 63 represent in the isotope symbol?

a)

atomic number

b)

mass number

c)

protons only

d)

neutrons only

29.
What is this sketch
showing?
a)
Nuclear fusion
b)
Nuclear action
c)
Nuclear chain reaction
30.

The reaction in the sun and other stars is which nuclear process?

a)

fission

b)

fusion

c)

both fission and fusion

d)

neither fission nor fusion

31.

Which nuclear process starts with a neutron?

a)

fission

b)

fusion

c)

both fission and fusion

d)

neither fission nor fusion

32.
Identify the decay particle and decay process for this equation:
89227Ac = 90227Th + ___
a)
24He, alpha decay
b)
24He, beta decay
c)
-10e, alpha decay
d)
-10e, beta decay
33.
In order of most to least penetrating radiation we have
a)
Alpha , Beta,  Gamma
b)
Beta , Gamma , Alpha
c)
Gamma, Beta, Alpha
d)
Gamma, Alpha, Beta
34.
Solve this equation for beta decay.
2760Co = ___ + -10e
a)
2556Mn
b)
2860Ni
c)
2358V
d)
2759Co
35.
What does the "12" in carbon-12 represent?
a)
Atomic number
b)
Mass number
c)
Neutron number
d)
Formula mass
36.

What does the 29 represent in the isotope symbol?

a)

atomic number

b)

mass number

c)

atomic mass

d)

neutrons only

37.

Which of the following is NOT a way to protect ourselves from ionizing radiation?

a)

increase distance from the source of radiation

b)

use shielding material

c)

limit time of exposure

d)

boil water before drinking

38.

What type of nuclear decay requires thick lead or concrete to stop it?

a)

alpha radiation

b)

beta radiation

c)

gamma radiation

d)

positron emission

39.

Which type of process involves atoms being rearranged into new compounds?

a)

fission

b)

fusion

c)

both fission and fusion

d)

neither fission nor fusion

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