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WorksheetsUnit 2 Review
Total questions: 15
Worksheet time: 9mins
Name
Class
Date
1.
In alpha decay, what happens to the mass of a nucleus?
a)
Increases by 4
b)
Decreases by 4
c)
Increases by 1
d)
Stays the same
2.
Why does mass decrease by 4 in alpha decay?
a)
Nucleus loses 4 protons
b)
Nucleus loses 4 neutrons
c)
Nucleus loses 2 protons & 2 neutrons
d)
Nucleus gains 4 neutrons
3.
When carbon-14 undergoes alpha decay, what will be the mass of the new element?
a)
12
b)
16
c)
8
d)
10
4.
When carbon-14 undergoes beta decay, what will be the mass of the new element?
a)
18
b)
14
c)
8
d)
10
5.
In beta decay, what happens to the atomic number?
a)
Stays the same
b)
Increases by 1
c)
Decreases by 2
d)
Increases by 4
6.
What particle is released during beta decay?
a)
proton
b)
electron
c)
neutron
7.
In ____________ one large nucleus splits into 2 smaller nuclei
a)
alpha decay
b)
nuclear fusion
c)
nuclear fission
d)
beta decay
8.
Which element will undergo nuclear fission?
a)
Plutonium
b)
Hydrogen
c)
Helium
9.
When Sulfur undergoes beta decay, what will be the identity of the new element?
a)
Still Sulfur
b)
Chlorine
c)
Silicon
d)
Phosphorus
10.
If 3Li7 undergoes alpha decay, which of the following will be the new nuclide formed?
a)
Left
b)
Middle
c)
Right
11.
Which of the following elements will undergo nuclear fusion?
a)
Hydrogen
b)
Uranium
c)
Plutonium
d)
Silver
12.
Which produces more energy in its reaction?
a)
nuclear fission
b)
nuclear fusion
13.
Which of the following nuclear reactions occur in the sun?
a)
nuclear fission
b)
nuclear fusion
c)
alpha decay
d)
beta decay
14.
Which of the following results in a nucleus that is larger than the original nucleus?
a)
nuclear fission
b)
nuclear fusion
15.
If Uranium-237 undergoes alpha decay, what will be the mass of the new nuclide formed?
a)
237
b)
233
c)
235
d)
None of these
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