53

I

Iodine

126.90

Halogen
Solid

Discovery

Courtois, Bernard (1811)

Etymology

Greek via French

Meaning

Violet

Electron configuration

Electron configuration

Crystal structure

Crystal structure

Orthorhombic

Physical Properties

Phase

  (at 21 °C and 101.325 kPa)

Solid

Melting point

  (at 101.325 kPa)

114.0 °C

387.15 K

Boiling point

  (at 101.325 kPa)

990.0 °C

1263.15 K

Density

  (at 21 °C and 101.325 kPa)

6.24 g/cm3

Electronegativity

2.66