Final answer:
Unstable isotopes, or radioactive isotopes, have various uses in different fields, including medicine. They are used in medical diagnosis as radioactive tracers and in the treatment of certain medical conditions.
Step-by-step explanation:
Unstable isotopes, also known as radioactive isotopes, have a variety of uses in different fields, and one of these fields is medicine. They are used in medical diagnosis as radioactive tracers to track biochemical reactions or to determine the distribution of substances within an organism. Radioactive isotopes are also used in the treatment of certain medical conditions, such as cancer. Overall, unstable isotopes play an important role in the field of medicine.