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WorksheetsNuclear
Total questions: 30
Worksheet time: 3hrs 32mins
An alpha particle is the equivalent of a Helium-4 nucleus.
True
False
Nuclear decay can change one element into another one.
True
False
What is the product of β -ray emission from a radioactive isotope of lead?
Thallium
Mercury
Bismuth
Lead
Gamma decay is a form of nuclear radiation that consists entirely of energy, not matter.
True
False
Alpha particles have a _____ charge.
-1
0
+1
+2
Gamma rays have a _____ charge.
-1
0
+1
+2
Which type of radiation is the most penetrating?
alpha
beta
gamma
all three are essentially equal
_____ is the splitting of nuclei.
fission
fusion
decay
denaturation
_____ is the combining of nuclei.
fusion
fission
decay
denaturation
Unstable nuclei can break apart spontaneously, changing the identity of the _____ .
solutions
atoms
compounds
reactions
Half-life is the amount of time it takes for half of the atoms of an unstable isotope to decay.
True
False
The half-life of arsenic-72 is 5 days. If the sample contained 250g. how much arsenic-72 would remain after 25 days?
7.8125 g
0.00000001 g
125 g
15.625 g
A sample of fossilized wood contained 52g of carbon-14 when it was alive. It now contains 3.25g. If carbon-14's half-life is 5730 years, how old is the sample?
28650
17190
11460
22920
Balance the equation:
Balance the equation:
What is the mass of a gamma ray?
-1
0
2
4
Balance the equation:
What causes an atom to be unstable?
proton:electron ratio
neutron:electron ratio
proton:neutron ratio
the location on the periodic table
Another name for a radioactive isotope.
iodine-131
radiation
band of stability
radioisotope
The conversion of an atom of one element to an atom of another element.
fission
transmutation
nucleus
radiation
The most dangerous type of radiation to be exposed to.
gamma
beta
alpha
Can penetrate through paper, but cannot penetrate through foil.
gamma
beta
alpha
When released during radioactive decay, the product's mass number would have changed by 4 and the atomic number by 2.
gamma
beta
alpha
Has no mass or charge.
gamma
beta
alpha
Has a charge of -1.
gamma
beta
alpha
Can easily penetrate through paper, foil, and lead.
gamma
beta
alpha
If a radioisotope undergoes beta emission, _________.
The atomic number changes.
The number of neutrons changes by 2.
The isotope loses a proton.
The mass number changes.
Which isotope do you expect to be more stable, C-14 or C-13? Explain.
Describe the process of nuclear fission and how it causes a nuclear chain reaction.
The half life for thorium-234 is 25 days.
How many half-lives did the sample go through at the end of 100 days?
4 half-lives
2 half-lives
3 half-lives
5 half-lives
