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Gallium (Ga)
Atomic number: 31 · Category: post-transition metal · Group 13 · Period 4 · Phase: Solid
Gallium is a chemical element with symbol Ga and atomic number 31. Elemental gallium does not occur in free form in nature, but as the gallium(III) compounds that are in trace amounts in zinc ores and in bauxite. Gallium is a soft, silvery metal, and elemental gallium is a brittle solid at low temperatures, and melts at 29.76 °C (85.57 °F) (slightly above room temperature).
Atomic mass: 69.7231
Density: 5.91
Melting point: 302.9146 K
Boiling point: 2673 K
Appearance: silver-white
Source: Wikipedia
Block: p
Molar heat: 25.86
CPK color:#c28f8f
Electronic structure
Electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p1
Configuration (semantic): [Ar] 3d10 4s2 4p1
Shells: 2, 8, 18, 3
Electronegativity (Pauling): 1.81
Electron affinity: 41
Ionization energies: 578.8, 1979.3, 2963, 6180
Periodic position
Group: 13
Period: 4
xpos: 13
ypos: 4
Spectral/Bohr images
Image
3D Model