I	Z =  53	◊ ◊ ◊ ◊ ◊	Iodine
			From the Greek "iodes", meaning "violet"
(AM) Atomic Mass	126.9045  amu	♦	Oxidation States	+1, +3, +5, +7, -1
(BP) Boiling Point	184.35  °C	♦	(MP) Melting Point	113.5  °C
(ρ) Density	4.94  g/cm3	♦	Crystal Structure	Orthorhombic
( χ ) Electronegativity	2.5	♦	(AR) Atomic Radius	1.33  Å
Physical State	Solid	♦	(C) Heat Capacity	0.214  J/g °C
Electronic-Config	[Kr]  4d10  5s2  5p5	♦	(I1) First Ionization E	1008.36  kJ/mol
(ΔHvap) Heat of Vaporization	41.57  kJ/mol	♦	(ΔHfus) Heat of Fusion	15.52  kJ/mol
Year of Discovery	1811	♦	Location of Discovery	France
(E°) Standard Potential	I2 (s) ⇔ 2 I- (0.540 V)
Stable isotopes	127I
Discovered/Synthesized by	Barnard Courtois
Natural Source	Isolated from seaweed
Common Uses	Disinfectant for wounds & drinking water, added to salt for thyroid disease, photo film
Other Info	Responsible for the characteristic smell of seaweeds Exists in nature as the diatomic molecule I2
Previous Element				Next Element
Back to Table				Common Properties
Home Page				Definitions