Starting iodine - Why Iodine can change the world

Thyroid Medications Radioactive Iodine (Iodine-131)

SOLVED:Iodine has many radioactive isotopes. Iodine-123 is a radioactive isotope used for obtaining images of the thyroid gland. Iodine-123 is administered to patients in the form of sodium iodide capsules that contain ^123 I^- ions. Determine the number of neutrons, protons, and electrons in a single ^123 I^- ion.

123

123

The Iodine Myth

Iodine based product

The rate of decay of an Iodine-123 isotope is proportional to the mass of isotope present at that time. The initial mass of the isotope was 200 g. Determine the mass of Iodine present after 39 days if the half-life period of the iodine isotope is approximately 13 hours.