The element iodine has a density of 4.93 grams per cubic centimeter when considered at room temperature conditions of 0 degrees Celsius and 101.32 pascals of pressure. An atom of iodine has an atomic weight of about 126.90 and an atomic number of 53.
Iodine is represented by the chemical symbol I. It is a diatomic nonmetal that is part of the halogen group on the periodic table of elements. It has a metallic gray color as a solid, and it appears violet as a gas. Iodine has a melting pint of 236.66 degrees Fahrenheit and a boiling point of 363.7 degrees Fahrenheit.