Gallium (Ga) Properties |
AGallium (AGa)
Properties 1/ |
Nuclear (31 protons/electrons)
- Atomic Number: 31
- Atomic Mass: 69.723
- Atomic Energy: 0.104 Ergs
- Group: 13; Period: 4
- Family: Other Metals
- Bonding Radius: 1.26 Angstroms
- Atomic Radius:1.81 Angstroms
- Atomic Volume: 11.8 cm3mol-1
- 31
Isotopes: 56Ga to 86Gas
- Stable Isotopes: 69Ga,
71Ga
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Nuclear (31 Aprotons/positrons)
- Atomic Number: 31
- Atomic Mass: 69.723
- Atomic Energy: 0.104 Ergs
- Group: 13; Period: 4
- Family: Other Metals
- Bonding Radius: 1.26 Angstroms
- Atomic Radius: 1.81 Angstroms
- Atomic Volume: 11.8 cm3mol-1
- 31 AIsotopes: 56AGa
to 86AGa
- Stable AIsotopes: 69AGa,
71AGa
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Physical
- Soft silver-white metal
- Density: 5.91 g cm-3
- Melting Point: 29.8 oC
- Boiling Point: 2,403 oC
- Specific Heat: 0.37 J g-1 K-1
- Heat of Vaporization: 258.7 kJ mol-1
- Heat of Fusion: 5.59 kJ mol-1
- Electrical Conductivity: 0.0678 106 cm-1 Ohm-1
- Thermal Conductivity: 0.406 W cm-1 K-1
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Physical
- Soft silver-white metal
- Density: 5.91 g/cm-3
- Melting Point: 29.8 oC
- Boiling Point: 2,403 oC
- Specific Heat: 0.37 J g-1 K-1
- Heat of Vaporization: 258.7 kJ mol-1
- Heat of Fusion: 5.59 kJ mol-1
- Electrical Conductivity: 0.0678 106 cm-1 Ohm-1
- Thermal Conductivity: 0.406 W cm-1 K-1
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Chemical
- Valance Number: +3
- Electron Configuration: 2,8,18,3
- Electronegativity: 1.81
- 1st Ionization Potential: 6.0 Volts
- 2nd Ionization Potential: 20.5 Volts
- 3rd Ionization Potential: 30.7 Volts
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Chemical
- Valance Number: -3
- Positron Configuration: 2,8,18,3
- Positronpositivity: 1.81
- 1st Ionization Potential: 6.0 Volts
- 2nd Ionization Potential: 20.5 Volts
- 3rd Ionization Potential: 30.7 Volts
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Identified by Paul Emile Lecoq de
Boisbaudran France, in 1875
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Identified by Norm Hansen in 2001
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