WorksheetsRadiation and Isotopes Quiz
Total questions: 12
Worksheet time: 6mins
Which type of radiation has the highest penetrating power?
Alpha (α)
Beta (β)
Gamma (γ)
Neutron
Alpha particles can be stopped by a sheet of paper. True or False?
True
False
The unit commonly used to measure biological radiation dose is the _______.
Sievert
Gray
Becquerel
Curie
Which everyday device uses a radioactive isotope for safety?
Smoke detector
Cell phone
MRI scanner
Flashlight
Why is gamma radiation used in cancer treatment, even though it can also harm healthy cells?
It is cheaper than other treatments.
It can target cancer cells more effectively.
It is less harmful than other types of radiation.
It is the only available option.
Write and balance the nuclear reaction: 88226Ra→24He+?
86222Rn
86224Rn
87222Fr
87224Fr
A patient undergoes a PET scan using fluorine-18. Why is F-18 preferred over carbon-14?
F-18 has a shorter half-life, minimizing radiation exposure.
C-14 is too stable for imaging.
F-18 is cheaper to produce.
C-14 is more toxic.
Applied Calculation: The half-life of Tc-99m is 6 hours. If a 100 mg sample is prepared at 8 AM, how much remains at 8 PM?
50 mg
25 mg
12.5 mg
6.25 mg
Data Interpretation: A chart shows that 25% of a sample remains after 24 hours. How many half-lives have passed?
1
2
3
4
Case Study: A patient accidentally receives twice the prescribed dose of I-131. Predict the possible short-term and long-term biological effects.
No effects
Only short-term effects
Only long-term effects
Both short-term and long-term effects
Multiple Choice: Which situation best illustrates nuclear fission?
The Sun producing energy.
A nuclear power plant generating electricity.
Two hydrogen nuclei combining.
A radioactive isotope decaying naturally.
Argumentation (Multiple Choice): A student says, “All radiation is dangerous and should be avoided in medicine.” Which is the best response?
True, because radiation always causes cancer.
False, because radiation can be used safely with controlled doses.
True, because no medical radiation is safe.
False, because radiation only occurs naturally.
