Question

1. why are there problems stockpiling them? explain. (2 marks) 3. select two medical use of radioisotopes from this article and describe how they work. what are the benefits and drawbacks of using these radioisotope is commonly used in these instance? (6 marks)

Explanation:

1. For the first part: Stockpiling radioactive materials has risks like radiation - leakage which can harm human health and the environment. There are also security concerns regarding potential theft for malicious use.
2. For the second part: Commonly used medical radioisotopes include Technetium - 99m which is used in imaging scans due to its short half - life and ability to emit gamma rays for detection. Iodine - 131 is used in the treatment of thyroid disorders as it is absorbed by the thyroid gland. Benefits include non - invasive diagnosis and targeted treatment. Drawbacks are radiation exposure risks if not properly managed and the need for careful handling due to radioactivity.

Answer:

1. There are problems with stockpiling radioactive materials mainly due to radiation - related health and environmental risks and security threats.
2. Commonly used medical radioisotopes: Technetium - 99m for imaging (benefit: non - invasive diagnosis, drawback: radiation risk if mismanaged); Iodine - 131 for thyroid treatment (benefit: targeted treatment, drawback: requires careful handling due to radioactivity).