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Radioactivity
Quiz 3
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Q.1
Energy in the sun is produced as a result of nuclear ____ reactions.
fusion
fission
waste
sub
Q.2
The rate at which a radioactive element decays is its ____.
quarter life
whole life
wonderful life
half life
Q.3
Which type(s) of radiation would be affected by a magnet?
alpha only
beta only
alpha and beta
gamma only
Q.4
Name the instrument used to detect radioactivity.
voltmeter
ohmeter
seismograph
geiger counter
Q.5
Neutrons released in a fission reaction can strike other nuclei and cause a
meltdown
take down
break down
chain reaction
Q.6
The half-life of strontium-isyears. How much strontium-will remain afteryears if the initial amount is 4.0 g?
3.0g
0.25mg
0.3g
0.25g
Q.7
Finish this equation20983Bi--> _______ + 20581Tl
42He
0-1e
y
Q.8
The type of radioactive particle that can be stopped by a sheet of paper is the ____.
alpha particle
beta particle
gamma ray
uranium
Q.9
The most dangerous type of radiation is the ____.
alpha particle
gamma ray
beta particle
uranium
Q.10
When nuclei decay, massive amounts of __________ is released.
energy
electrons
protons
neutrons
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