Periodic table of the elements
ZincGalliumGermanium
31
Ga
Gallium
69.723
2
8
18
3
31
Ga
Gallium
69.723
2
8
18
3
General
NameGallium
SymbolGa
Number31
Chemical seriesOther metals
Group / Period13 / 4
Blockp-block
CAS registry number7440-55-3

Physical properties
Statesolid
Density5.91 g/cm3
Melting point302.9146 K (29.7646 °C, 85.5763 °F)
Boiling point2477 K (2204°C, 3999°F)
Critical point

Atomic properties
Atomic Weight69.723 g/mol
Crystal structureorthorhombic
Electronegativity1.81
Atomic radius126 pm
Atomic radius (calculated)187 pm
Electron configuration[Ar] 3d10 4s2 4p1
Electrons per shell2, 8, 18, 3
Number of protons31
Number of neutrons39

Other languages
SpanishGalio
PortugueseGálio
FrenchGallium
GermanGallium
ItalianGallio
RussianГаллий
PolishGal
Chinese
Arabicغاليوم
TurkishGalyum
DutchGallium


Periodic table of the elements
ZincGalliumGermanium