The correct option is A-3, B-2, C-1
Explanation
Radioactive isotopes (radioisotopes) of specific elements possess unique nuclear properties that are utilized in medical diagnosis, therapeutic treatments, and energy production.- A. Uranium (U-235): Uranium is a heavy metal whose isotope, Uranium-235, is fissile. It serves as the primary fuel in nuclear reactors. Through the process of nuclear fission, it releases a massive amount of thermal energy, which is converted into electricity.
- B. Cobalt (Co-60): Cobalt-60 is a synthetic radioactive isotope of cobalt. It emits high-energy gamma rays, which are effective in radiotherapy for the treatment of cancer. The radiation targets and destroys malignant tumor cells.
- C. Iodine (I-131): The thyroid gland naturally absorbs iodine to produce hormones. Iodine-131, a radioactive isotope, is used in the diagnosis and treatment of thyroid disorders, such as Goitre and hyperthyroidism, as well as thyroid cancer.
Key Takeaway: Specific radioisotopes have distinct applications: Uranium-235 is essential for nuclear power generation, Cobalt-60 is used in oncology (cancer treatment), and Iodine-131 is used in endocrinology (thyroid treatment).