Iodine is a dark, lustrous halogen used medically as antiseptics and nutritionally to prevent iodine deficiency.
Properties of Iodine | It forms diatomic I2, soluble in organic solvents, and forms iodide and iodate ions in aqueous chemistry.
Uses of Iodine | Iodine is extracted from brines and used in nutrition, radiopharmaceuticals, antiseptics and industrial chemistry.
Isotopes of Iodine | Stable isotope I 127 is natural; radioactive I 131 is used clinically and requires radiological safety measures.