1. carbon-12 and carbon-14 have a different number of
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Isotopes. 1. Carbon-12 and Carbon-14 have a different number of . Protons Neutrons Both Neither . Radioactive Isotopes. 2. Which statement is true about an isotope’s half life?. Isotopes of the same element will have the same half life. - PowerPoint PPT PresentationTRANSCRIPT
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1. Carbon-12 and Carbon-14 have a different number of
A. ProtonsB. NeutronsC. BothD. Neither
Protons
Neutrons
Both
Neither
21%
0%4%
75%
Isotopes
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2. Which statement is true about an isotope’s half life?A. Isotopes of the same element will
have the same half life.B. The longer a half life, the less
stable an isotope is.C. An isotope’s half life cannot be
changed.D. All of the above.
Isotopes o
f the sa
me el...
The longer a
half life
, the...
An isotope’s h
alf life
cann..
All of th
e above.
12%
36%40%
12%
Radioactive Isotopes
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3. When an isotope undergoes fission, A. Energy is released.B. Another isotope is
produced.C. Particles are released.D. All of the above.
Energy is r
eleased.
Another isoto
pe is pro
d...
Particle
s are re
leased.
All of th
e above.
26%
70%
0%4%
Radioactive Decay
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4. 700 curies of Strontium-89 was released from the Hanford plant. It has a half life of 50 days. How many days later will it be after 2 half-lives have elapsed?
A. 100 daysB. 175 daysC. 350 daysD. 700 daysE. 1400 days
100 days
175 days
350 days
700 days
1400 days
85%
5% 5%5%0%
Radioactive Decay
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5. 700 curies of Strontium-89 was released from the Hanford plant. It has a half life of 50 days. How many curies of Sr-89 will be left after 2 half-lives?
A. 0 curiesB. 100 curiesC. 175 curiesD. 350 curiesE. 700 curies
0 curie
s
100 curie
s
175 curie
s
350 curie
s
700 curie
s
10%5%
0%5%
81%
Radioactive Decay
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6. When a neutron decomposes into a proton and an emitted electron which type of radiation is occurring?
A. AlphaB. BetaC. GammaD. Positron
AlphaBeta
Gamma
Positron
14%9%
18%
59%
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7. A particle emitted during nuclear decay that consists of 2 protons and 2 neutrons (a helium nucleus) is a
A. Alpha particleB. Beta particleC. Gamma rayD. Positron
Alpha particle
Beta parti
cle
Gamma ray
Positron
59%
18%18%
5%
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8. Which of the following types of radioactive decay will change the isotope from one element to another?
A. AlphaB. BetaC. GammaD. Both A and BE. A, B and C
AlphaBeta
Gamma
Both A and B
A, B and C
9% 9%
18%
36%
27%
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9. Which of the following types of radioactive decay will decrease the mass of the isotope?
A. AlphaB. BetaC. GammaD. Both A and BE. A, B and C
AlphaBeta
Gamma
Both A and B
A, B and C
21%
5%
11%
32%32%
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Alpha decay decreases the atomic number by 2, because the alpha particle includes two protons.The mass decreases by 4 since the particle also contains to neutrons.
Beta-plus decay decreases the atomic number by one since a proton is split into a neutron and a positron. The mass does not change since the particle released does not contain significant mass.
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Beta minus decay INCREASES the atomic number by one since a neutron is split into a proton and an electron.The mass does not change since the electron that is released does not have significant mass.
Gamma radiation does not change the atomic number or the mass of an atom.
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10. Which of the following is not a type of ionizing radiation?
A. Gamma WavesB. X-RayC. Radio WavesD. Ultra-violet Waves
Gamma Waves
X-Ray
Radio Waves
Ultra-violet W
aves
5% 5%
75%
15%
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Inverse relationshipOne factor increases, the other decreases.Example: Pressure varies inversely with volume.
Direct relationship Both increase together (or decrease together). Example: Pressure varies directly with temperature.
Review of Inverse and Direct Relationships
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11. The wavelength of a wave varies _______ with frequency and _____ with energy.
A. Inversely; directlyB. Directly; inverselyC. Directly with bothD. Inversely with both
Inverse
ly; dire
ctly
Directl
y; inverse
ly
Directl
y with
both
Inverse
ly with
both
35%
26%
13%
26%
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Increasing frequency
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12. In a nuclear reactor, water is used to
A. Generate steam to produce electricity.
B. Cool the reactor core.C. Both A and B.D. Neither A nor B
Generate st
eam to prod...
Cool the re
actor c
ore.
Both A and B.
Neither A
nor B
4%8%
40%48%
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13. The country that gets the highest percentage of their electricity from nuclear is
A. The United StatesB. JapanC. FranceD. China
The United States
Japan
France
China
8%
0%
46%46%
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14. The country that generates the most nuclear energy is
A. The United StatesB. JapanC. FranceD. China
The United States
Japan
France
China
96%
0%0%4%
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15. Which act limits liability to nuclear energy companies for accidents?
A. Nuclear Waste Policy ActB. Nuclear Accident
Insurance Act.C. Price Anderson ActD. Truman Nuclear Policy Act
Nuclear W
aste Polic
y Act
Nuclear A
ccident In
sura...
Price Anderso
n Act
Truman Nuclear P
olicy Act
29%
19%
38%
14%
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16. The only significant nuclear power plant accident the United States happened in
A. PennsylvaniaB. WashingtonC. VirginiaD. Nevada
Pennsylvania
Wash
ington
Virginia
Nevada
60%
4%
16%20%
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17. The cause of the nuclear accident at Three Mile Island was
A. An explosion in one of the reactor cores.
B. Loss of coolant to one of the reactor cores.
C. Accidental discharge of radioactive water into the local river.
D. All of the above.An exp
losion in
one of th...
Loss
of coolant t
o one of...
Accidental d
ischarge
of r...
All of th
e above.
9%
43%
9%
39%
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18. The Chernobyl nuclear accident happened in
A. SwedenB. RussiaC. UkraineD. Slovakia
SwedenRussi
a
Ukraine
Slovakia
0% 0%
67%
33%
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19. Currently, high level nuclear waste is stored
A. At Yucca Mountain.B. In government-run
landfills.C. At each nuclear reactor
site.D. All of the above.
At Yucca
Mountain.
In govern
ment-run la
ndfills.
At each
nuclear
reactor s
ite.
All of th
e above.
16%
32%
40%
12%
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20. Which of the following is not a disadvantage to nuclear power?
A. Low fuel supplyB. Lack of location for
storage of wasteC. Potential for catastrophic
accidentsD. High cost
Low fu
el supply
Lack of lo
cation for s
tora..
Potential for c
atastrophi...
High cost
75%
13%4%8%
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Uranium Reserves
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1. B2. C3. D4. A5. C6. B7. A8. D9. A10.C11.D12.C13.C14.A15.C16.A17.B18.C19.C20.A