Periodic table of the elements
TelluriumIodineXenon
53
I
Iodine
126.90447		2
8
18
18
7
53
I
Iodine
126.90447		2
8
18
18
7
General
NameIodine
SymbolI
Number53
Chemical seriesHalogens
Group / Period17 / 5
Blockp-block
CAS registry number7553-56-2

Physical properties
Statesolid
Density4.933 g/cm3
Melting point386.85 K (113.7 °C, 236.66 °F)
Boiling point457.4 K (184.3 °C, 363.7 °F)
Critical point819 K, 11.7 MPa

Atomic properties
Atomic Weight126.90447 g/mol
Crystal structureorthorhombic
Electronegativity2.66
Atomic radius140 pm
Atomic radius (calculated)115 pm
Electron configuration[Kr] 4d10 5s2 5p5
Electrons per shell2, 8, 18, 18, 7
Number of protons53
Number of neutrons76

Other languages
SpanishYodo
PortugueseIodo
FrenchIode
GermanIod
ItalianIodio
RussianИод
PolishJod
Chinese碘
Arabicيود
Turkishİyot
DutchJodium


Periodic table of the elements
TelluriumIodineXenon