Gallium
Gallium
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Gallium ΒΆ
AtomicNumber: 31
Element: Gallium
Symbol: Ga
AtomicMass: 69.723
NumberofNeutrons: 39
NumberofProtons: 31
NumberofElectrons: 31
Period: 4
Group: 13.0
Phase: solid
Radioactive: nan
Natural: yes
Metal: yes
Nonmetal: nan
Metalloid: nan
Type: Metal
AtomicRadius: 1.8
Electronegativity: 1.81
FirstIonization: 5.9993
Density: 5.91
MeltingPoint: 302.91
BoilingPoint: 2477.0
NumberOfIsotopes: 14.0
Discoverer: de Boisbaudran
Year: 1875.0
SpecificHeat: 0.371
NumberofShells: 4
NumberofValence: 3.0