Topic 4 - Nuclear Practice
1. Which nuclear emission has the greatest mass and the
least penetrating power?
A) an alpha particle
C) a neutron
B) a beta particle
D) a positron
2. Which particle has the least mass?
A) alpha particle
C) neutron
B) beta particle
D) proton
3. Atoms of I-131 spontaneously decay when the
A)
B)
C)
D)
stable nuclei emit alpha particles
stable nuclei emit beta particles
unstable nuclei emit alpha particles
unstable nuclei emit beta particles
4. Which radioisotope has an atom that emits a particle
with a mass number of 0 and a charge of +1?
A) 3H
B)
16N
C)
19Ne
D)
239Pu
5. Which nuclear emission has no charge and no mass?
A) alpha particle
C) gamma ray
B) beta particle
D) positron
6. The diagram below represents radiation passing through
an electric field.
9. What is the half-life of a radioisotope if 25.0 grams of an
original 200.-gram sample of the isotope remains
unchanged after 11.46 days?
A) 2.87 d
C) 11.46 d
B) 3.82 d
D) 34.38 d
10. What is the half-life and decay mode of Rn-222?
A)
B)
C)
D)
1.91 days and alpha decay
1.91 days and beta decay
3.82 days and alpha decay
3.82 days and beta decay
11. After 32 days, 5 milligrams of an 80-milligram sample
of a radioactive isotope remains unchanged. What is the
half-life of this element?
A) 8 days
C) 16 days
B) 2 days
D) 4 days
12. Which equation represents natural transmutation?
A)
B)
C)
D)
13. Given the reaction:
Which type of reaction is represented?
Which type of emanation is represented by the arrow
labeled 2?
A) alpha particle
C) positron
B) beta particle
D) gamma radiation
7. After decaying for 48 hours, of the original mass of a
radioisotope sample remains unchanged. What is the
half-life of this radioisotope?
A) 3.0 h
B) 9.6 h
C) 12 h
D) 24 h
8. Which radioisotopes have the same decay mode and
have half-lives greater than 1 hour?
A) Au-198 and N-16
C) I-131 and P-32
B) Ca-37 and Fe-53
D) Tc-99 and U-233
A)
B)
C)
D)
natural transmutation
artificial transmutation
fission
fusion
14. In which list can all particles be accelerated by an
electric field?
A)
B)
C)
D)
alpha particles, beta particles, and neutrons
alpha particles, beta particles, and protons
alpha particles, protons, and neutrons
beta particles, protons, and neutrons
15. Which particle can not be accelerated by the electric or
magnetic fields in a particle accelerator?
A) neutron
C) alpha particle
B) proton
D) beta particle
16. What is one benefit associated with a nuclear fission
reaction?
A)
B)
C)
D)
The products are not radioactive.
Stable isotopes are used as reactants.
There is no chance of biological exposure.
A large amount of energy is produced.
17. Which term identifies a type of nuclear reaction?
A) fermentation
C) reduction
B) deposition
D) fission
18. Given the diagram representing a reaction:
22. Given the nuclear equation:
Which particle is represented by
A)
B)
C)
?
D)
23. The decay of which radioisotope can be used to
estimate the age of the fossilized remains of an insect?
A) Rn-222
C) Co-60
B) I-131
D) C-14
24. Which radioisotope is used to treat thyroid disorders?
A) Co-60
C) C-14
B) I-131
D) U-238
25. Radioisotopes used for medical diagnosis must have
Which phrase best describes this type of reaction and
the overall energy change that occurs?
A)
B)
C)
D)
nuclear, and energy is released
nuclear, and energy is absorbed
chemical, and energy is released
chemical, and energy is absorbed
19. An uncontrolled chain reaction takes place during the
A)
B)
C)
D)
operation of a fission nuclear reactor
explosion of an atomic bomb
production of energy by the Earth's Sun
fusion of light nuclei into heavier nuclei
20. Which balanced equation represents a fusion reaction?
A)
B)
C)
D)
23592U
9336Kr + 14056Ba + 3 1 0 n
+ 10n
21H + 31H
4 2 He + 1 0 n
147 N + 4 2 He
178 O + 1 1 H
22688Ra
22286Rn + 4 2 He
21. Nuclear fusion differs from nuclear fission because
nuclear fusion reactions
A)
B)
C)
D)
form heavier isotopes from lighter isotopes
form lighter isotopes from heavier isotopes
convert mass to energy
convert energy to mass
A) long half-lives and be quickly eliminated by the
body
B) long half-lives and be slowly eliminated by the
body
C) short half-lives and be quickly eliminated by
the body
D) short half-lives and be slowly eliminated by the
body
26. A radioisotope which is sometimes used by doctors to
pinpoint a brain tumor is
A) carbon-12
C) technetium-99
B) lead-206
D) uranium-238
27. Which risk is associated with using nuclear fission to
produce energy in a power plant?
A)
B)
C)
D)
depletion of hydrocarbons
depletion of atmospheric oxygen
exposure of workers to radiation
exposure of workers to sulfur dioxide
28. What is a problem commonly associated with nuclear
power facilities?
A)
B)
C)
D)
A small quantity of energy is produced.
Reaction products contribute to acid rain.
It is impossible to control nuclear fission.
It is difficult to dispose of wastes.
Answer Key
Topic 4 - Nuclear SHORT
1.
A
2.
B
3.
D
4.
C
5.
C
6.
D
7.
C
8.
C
9.
B
10.
C
11.
A
12.
B
13.
B
14.
B
15.
A
16.
D
17.
D
18.
A
19.
B
20.
B
21.
A
22.
A
23.
D
24.
B
25.
C
26.
C
27.
C
28.
D