Question

Mention few uses of radioactive isotopes in radiotherapy. (2 marks)

Answer 1

The radioactive isotopes used in radiotherapy are as follows:

• Gold-198 is used in cancer treatment. (0.5 mark)
• Iodine-131 is used in the treatment of hyperthyroidism and cancer. (0.5 mark)
• Phosphorous-32 is used to treat blood disorder and skin disease. (0.5 mark)
• Cobalt-60 is used in the treatment of cancer. (0.5 mark)