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WorksheetsNuclear Chemi
Total questions: 25
Worksheet time: 52mins
Name
Class
Date
1.
What type of decay changes the atomic number of the atom?
a)
Transmutation
b)
Translation
c)
Translocation
d)
Transuranium
2.
Which of the following best describes the process of nuclear fission?
a)
Splitting an atom's nucleus apart
b)
Separating an atom's electrons from its nucleus
c)
Fusing two atomic nuclei together
d)
Splitting an atom's electrons in half
3.
Which of the following is an example of nuclear fusion?
a)
A plutonium atom is used to start a chain reaction that detonates a nuclear weapon
b)
A uranium atom is split apart into lighter elements
c)
Two hydrogen atoms are combined to form a helium atom
d)
Two hydrogen atoms bond with an oxygen atom to form a water molecule
4.
Positively charged particles that consist of two protons and two neutrons are called
a)
alpha particles
b)
beta particles
c)
gamma rays
d)
neutron emissions
5.
An electron that is emitted during radioactive decay is a
a)
neutron
b)
gamma ray
c)
alpha particle
d)
beta particle
6.
The least penetrating type of radiation
a)
Alpha particle
b)
Beta particle
c)
gamma ray
7.
This type of reaction occurs on the sun and in stars.
a)
Fission
b)
Fusion
c)
synthesis
d)
decomposition
8.
A form of radiation that carries energy and has no mass and no charge.
a)
Alpha particles
b)
Beta Particles
c)
Gamma Rays
d)
Daughter nucleus
9.
Which type of nuclear radiation is being emitted here?
a)
alpha
b)
beta
c)
gamma
d)
none
10.
What element is the ?
a)
Ag-115
b)
Cd-115
c)
Pd-115
d)
Not Listed
11.
What type of decay does not change the element or the mass?
a)
Alpha
b)
Beta
c)
Gamma
12.
Which type of nuclear radiation is being emitted here?
a)
Alpha
b)
beta
c)
gamma
d)
none
13.
What is meant by the statement that 15P32 has a half life of 14 days
a)
It takes 7 days to go down to 50% radioactivity each time
b)
It takes 14 days to go down to 50% radioactivity each time
c)
After 14 days it starts to become less radioactive
d)
It takes 14 days to go up by 50% radioactivity each time
14.
The type of radioactive particle will penetrate farthest into a material is a(n)__________.
a)
alpha
b)
beta
c)
gamma
d)
all of the above
15.
How many neutrons does uranium-239 have
a)
92
b)
147
c)
239
d)
331
16.
What is Half-life?
a)
The amount of time it takes for some of the nuclei in a sample of the isotope to decay
b)
The amount of time it takes for half the electrons in a sample of the isotope to decay
c)
The amount of time it takes for half the nuclei in a sample of the isotope to decay
d)
the amount of time it takes to double the nuclei in a sample of the isotope to decay
17.
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
18.
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
19.
What is the symbol for an alpha particle?
a)
42He
b)
0-1e
c)
0+1 e
d)
10n
20.
In a nuclear reactor what slows down neutrons?
a)
Control Rods
b)
Moderator
c)
Sheilding
d)
The brakes
21.
In a nuclear reactor what absorbs fast moving neutrons?
a)
generator
b)
moderator
c)
control rods
d)
sheilding
22.
In fission neutron is often used to start the reaction and it is also a product of the reaction. This is called a ____
a)
neutron emission
b)
nuclear fusion
c)
domino effect
d)
chain reaction
23.
What turns the turbines in a nuclear power plant?
a)
uranium
b)
plutonium
c)
heat
d)
steam
24.
What type of nuclear decay emits a positive electron from the nucleus of an atom?
a)
beta decay
b)
gamma decay
c)
alpha decay
d)
positron emission
25.
Which of the following is NOT a use for radiation?
a)
PET scan
b)
Carbon Dating
c)
Smoke Detectors
d)
All are uses for radiation
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