Periodic table of the elements
HeliumLithiumBeryllium
3
Li
Lithium
6.941
2
1
3
Li
Lithium
6.941
2
1
General
NameLithium
SymbolLi
Number3
Chemical seriesAlkali metals
Group / Period1 / 2
Blocks-block
CAS registry number7439-93-2

Physical properties
Statesolid
Density0.534 g/cm3
Melting point453.69 K (180.54 °C, 356.97 °F)
Boiling point1615 K (1342 °C, 2448 °F)
Critical point3223 K, 67 MPa

Atomic properties
Atomic Weight6.941 g/mol
Crystal structurehexagonal
Electronegativity0.98
Atomic radius145 pm
Atomic radius (calculated)167 pm
Electron configuration[He] 2s1
Electrons per shell2, 1
Number of protons3
Number of neutrons4

Other languages
SpanishLitio
PortugueseLítio
FrenchLithium
GermanLithium
ItalianLitio
RussianЛитий
PolishLit
Chinese
Arabicليثيوم
TurkishLityum
DutchLithium


Periodic table of the elements
HeliumLithiumBeryllium