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WorksheetsRadioative Decay
Total questions: 21
Worksheet time: 1hrs 26mins
Name
Class
Date
1.
How is the alpha particle written in a nuclear equation?
a)
42He
b)
24He
c)
0-1e
d)
00γ
2.
A helium nucleus with two protons and two neutrons is called a(n) ____.
a)
alpha particle
b)
electroscope
c)
beta particle
d)
gamma ray
3.
Which type of nuclear radiation is being emitted here?
a)
Alpha
b)
beta
c)
gamma
d)
none
4.
Solve this equation for alpha decay.
85209At = ___ + 24He
85209At = ___ + 24He
a)
83205Bi
b)
86209Rn
c)
81207Tl
d)
85208At
5.
Solve this equation for beta decay.
614C = ___ + -10e
614C = ___ + -10e
a)
410Be
b)
714N
c)
210He
d)
613C
6.
The nucleus is held together by the ___________________________force.
a)
The Strong Nuclear Force
b)
The Weak Nuclear Force
c)
Electromagnetism
d)
Gravity
7.
During beta-particle emission, a neutron splits into a____________________.
a)
proton and electron
b)
neutron and electron
c)
neutron and proton
8.
Has the symbol
a)
Alpha
b)
Beta
c)
Gamma
9.
Has the symbol
a)
Alpha
b)
Beta
c)
Gamma
10.
Has the symbol
a)
Alpha
b)
Beta
c)
Gamma
11.
Has the highest penetrating power. Can penetrate our body. Even several cm thick of lead or several meters thick of concrete cannot stop all of it.
a)
Alpha
b)
Beta
c)
Gamma
12.
Has the lowest penetrating power. Can only penetrate 0.05 mm into the body and can be stopped by a piece of paper or clothing.
a)
Alpha
b)
Beta
c)
Gamma
13.
The process of nuclear change in an atom of radioactive material is called...
a)
nuclear decay
b)
nuclear mass
c)
isotopes
d)
radon
14.
Radioactive materials have unstable...
a)
electrons
b)
protons
c)
nuclei
d)
neutrons
15.
This is an example of...
a)
Fission reaction
b)
Fusion reaction
c)
Decomposition reaction
d)
Decay
16.
Which process involves the joining of small nuclei?
a)
Beta decay
b)
Alpha decay
c)
Nuclear fission
d)
Nuclear fusion
17.
Should uranium be ingested
a)
Yes
b)
No
18.
What is uranium’s atomic number
a)
29
b)
76
c)
92
d)
69
19.
What is uranium’s half life
a)
The shortest
b)
12.19 seconds
c)
1823 years
d)
The longest
20.
Thorium-230 decays into _____ via _____ emissions.
a)
radium-88; alpha
b)
radium-226; beta
c)
polonium-218; alpha
d)
radium-226; alpha
21.
What type of decay is missing at the circled point ?
a)
alpha
b)
beta
c)
gamma
d)
can't tell without more information
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