what is the significance of iodine
Iodine is a chemical element with symbol I and atomic number 53. The name is from Greek á¼°Î¿ÎµÎ¹Î´Î®Ï ioeidÄs, meaning violet or purple, due to the color of elemental iodine vapor.Iodine and its compounds are primarily used in nutrition, and industrially in the production of acetic acid and certain polymers.odine has only one stable isotope. A number of iodine radioisotopes, such as 131 I, are also used in medical applications. Iodine is found on Earth mainly as the highly water-soluble iodide ion Iâ , which concentrates it in oceans and brine pools.