Iodine

by Zaid. Edited by Mason Weybright

Scientific symbol: I

Atomic number: 53

Atomic mass: 126.90447

Density: 4.933 g·cm−3 Boiling point: 457.4 K, 184.3 °C, 363.7 °F

Melting point: 386.85 K, 113.7 °C, 236.66 °F

Number of protons: 53

Number of neutrons: 74

Number of electrons: 53

Isotopes: 39

Discoverer: The French chemist Bernard Curtois (1777-1838).

Iodine is used by the thyroid gland to make hormones. If your body does not get enough iodine then your thyroid gland starts to work harder resulting in a swollen neck. (By: Tristan Sampley Source: http://www.webmd.com/vitamins-supplements/ingredientmono-35-iodine.aspx?activeingredientid=35&activeingredientname=iodine)