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Periodic table
Characteristics of the element
Symbol:
I
Name:
Iodine
Latin name:
Iodum
Atomic number:
53
Atomic mass:
126,90447
Melting point:
113,5 (°C)
Boiling point:
184,35 (°C)
Density
4,940 (g/cm
3
)
Electronegativity:
2,2
Oxidation number:
-I,I,V,VII
Number of neutrons:
74
Crystal structure:
Orthorhombic
Chemical serie:
Halogens
Color:
black
Electron configuration:
2-8-18-18-7
Year of discovery::
1804
Compounds
Symbol
Name
Next information
CsI
Jodid cesia
more
RbI
Jodid rubidia
more
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Update: 26.11.25