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BookmarkIodine is a chemical element in the periodic table that has the symbol I and atomic number 53.
Chemically, iodine is the least reactive of the halogens, and the most electropositive halogen after astatine.
Iodine is used in pharmaceuticals, antiseptics, medicine, food supplements, dyes, catalysts and photography.
It is required in trace amounts by most living organisms.It is required as a trace element for most living organisms.
Iodine deficiency gives rise to goiter..
For more information about the topic Iodine, read the full article at Wikipedia.org, or see the following related articles:
Halogen — The halogens are a chemical series. They are the elements in Group 17 (old-style: VII or VIIA) of the periodic table: fluorine (F), chlorine (Cl), ... > read more
Tellurium — Tellurium is a chemical element in the periodic table that has the symbol Te and atomic number 52. A brittle silver-white metalloid which looks like ... > read more
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