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WorksheetsAlpha/Beta + Half-Life Quiz
Total questions: 15
Worksheet time: 53mins
Name
Class
Date
1.
In the equation, 146C --> 147N + 0-1B, the _______ decay of radioactive carbon-14 results in the creation of a new nitrogen-14 atom.
a)
Radioactive
b)
Beta
c)
Alpha
d)
Gamma
2.
One helium nucleus is the same as a(n)
a)
alpha particle
b)
beta particle
c)
gamma particle
d)
positron
3.
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
4.
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
5.
After 4 half-lives, 1g of a sample of Krypton-85 remains unchanged. What was the original mass of the sample?
a)
16g
b)
32g
c)
0.0625g
d)
4g
6.
Why do some elements have half-lives?
a)
they radioactively decay
b)
half of their atom gets stolen
c)
They are Twizzlers that break in half
7.
The % of the parent isotope remaining after 3 Half Lives.
a)
50%
b)
25%
c)
12.5%
d)
6.25%
8.
If 10 mg of iodine 131 is given to a patient, how much is left after 24 days? The half-life of iodine-131 is 8 days.
a)
1.25mg
b)
1.25g
c)
10g
d)
10mg
9.
If the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?
a)
1 half-life
b)
2 half-lives
c)
3 half-lives
d)
4 half-lives
10.
Which process involves the joining of small nuclei?
a)
Beta decay
b)
Alpha decay
c)
Nuclear fission
d)
Nuclear fusion
11.
Which process involves the splitting of large nuclei?
a)
Beta decay
b)
Alpha decay
c)
Nuclear fission
d)
Nuclear fusion
12.
The time taken for half of an amount of radioactive atoms to decay.
a)
Nuclear fusion
b)
Full-life
c)
Dead time
d)
Half-life
13.
Has the symbol
a)
Alpha
b)
Beta
c)
Gamma
d)
proton
14.
Has the symbol
a)
Alpha
b)
Beta
c)
Gamma
d)
neutron
15.
Which type of nuclear radiation is being emitted here?
a)
Alpha
b)
beta
c)
gamma
d)
none
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