Iodine

Properties

Atomic Number

53

Atomic Symbol

I

Atomic Mass

126.9045

CAS No.

7553-56-2

Density

4.94 g/cm³

Series

halogen

Melting Point

113.7°C

Boiling Point

184.3°C

Thermal Conductivity

0.00449 W/cm °C

Heat of Fusion

7.76 kJ/mol

Heat of Vaporization

20.9 kJ/mol

Electronegativity

2.66 pauling

Crystal Structure

Orthorhombic

Electrical Conductivity

1×10^-7 S/m