Radioisotopes and Their Applications
Chemistry ⇒ Nuclear Chemistry
Radioisotopes and Their Applications starts at 11 and continues till grade 12.
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See sample questions for grade 12
A 100 g sample of a radioisotope decays to 25 g in 8 hours. What is its half-life?
A radioactive isotope has a half-life of 10 years. If you start with 200 g, how much will remain after 30 years?
A radioactive sample decays to 1/16th of its original amount in 24 hours. What is its half-life?
A sample contains 80 mg of a radioisotope with a half-life of 2 hours. How much of the isotope will remain after 6 hours?
A scientist uses a radioisotope with a half-life of 5 days. If she starts with 32 g, how much will remain after 15 days?
A scientist wants to date a wooden artifact using radiocarbon dating. Which radioisotope will she use?
Describe how radioisotopes are used in leak detection in pipelines.
Describe one use of radioisotopes in agriculture.
Describe one way radioisotopes are used in industry.
Explain how radioisotopes are used in environmental studies to track pollution.
Explain how radioisotopes are used in hydrology to study the movement of groundwater.
Explain why radioisotopes with long half-lives are not suitable for medical imaging.
Explain why short-lived radioisotopes are preferred for diagnostic purposes in medicine.
Explain why Technetium-99m is widely used in medical imaging.
What is a radioisotope?
Which property makes radioisotopes useful as tracers in biological systems?
