Recognize common isotopes and their uses.

Sure, here are some common isotopes and their uses:

1. Carbon-14: This isotope is used in carbon dating. This process helps scientists to determine the age of ancient artifacts and fossils.

2. Uranium-235: This isotope is used as a fuel in nuclear reactors. It undergoes fission to produce energy.

3. Iodine-131: This isotope is used in the treatment of thyroid disorders. It is absorbed by the thyroid gland and destroys overactive thyroid cells.

4. Cobalt-60: This isotope is used in cancer treatment. It is used in radiotherapy to kill cancer cells.

5. Technetium-99m: This isotope is used in medical imaging. It is used to create images of the skeleton and heart muscle.

6. Tritium (Hydrogen-3): This isotope is used in self-powered lighting devices like exit signs in buildings, aircraft dials, gauges, luminous paints, and wristwatches.

7. Plutonium-239: This isotope is used in nuclear weapons and as a fuel in some types of nuclear reactors.

8. Americium-241: This isotope is used in smoke detectors. It ionizes the air, making it conductive and allowing the smoke to be detected.

Remember, isotopes are variants of a particular chemical element which differ in neutron number, and are used in a variety of applications in medicine, industry, and scientific research.