Gallium (Ga)

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Table 2547. Properties of gallium (Ga).

Atomic number	31	Atomic mass	69.72 g·mol^-1
Density	5.1 g.cm^-3 at 20°C	Melting point	29.8 °C
		Vapor pressure at melting point	< 10^-11 Torr
Electrons	31	Protons	31
Boiling point	2204 °C	Vanderwaals radius	0.161 nm
Ionic radius	0.083 nm (Ga⁺³)	Isotopes	6
Electronic shell	3d¹⁰4s²4p¹	Energy of first ionisation	578.6 kJ·mol^-1
Energy of second ionisation	1978.8 kJ·mol^-1	Energy of third ionisation	2389 kJ·mol^-1

Figure 2547a shows the solid solubility of some impurities (including Ga) in silicon.

Solid solubility of impurities in silicon

Figure 2547a. Solid solubility of impurities in silicon.

Figure 2547b shows the solubility for impurities (including Ga) in SiC.

Solubility for impurities in SiC

Figure 2547b. Solubility for impurities in SiC.

Practical Electron Microscopy and Database