Germanium (Ge) Properties |
AGermanium (AGe)
Properties 1/ |
Nuclear (32 protons/electrons)
- Atomic Number: 32
- Atomic Mass: 72.61
- Atomic Energy: 0.108 Ergs
- Group: 14; Period: 4
- Family: Metalloids
- Bonding Radius: 1.22 Angstroms
- Atomic Radius: 1.52 Angstroms
- Atomic Volume: 13.6 cm3mol-1
- 32
Isotopes: 58Ge to 89Ge
- Stable Isotopes: 70Ge,
72Ge, 73Ge,
74Ge, 76Ge
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Nuclear (32 Aprotons/positrons)
- Atomic Number: 32
- Atomic Mass: 72.61
- Atomic Energy: 0.108 Ergs
- Group: 14; Period: 4
- Family: Metalloids
- Bonding Radius: 1.22 Angstroms
- Atomic Radius: 1.52 Angstroms
- Atomic Volume: 13.6 cm3mol-1
- 32 AIsotopes: 58AGe
to 89AGe
- Stable AIsotopes: 70AGe,
72AGe, 73AGe,
74AGe, 76AGe
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Physical
- Hard brittle grayish-white metal
- Density: 5.32 g cm-3
- Melting Point: 937 oC
- Boiling Point: 2,830 oC
- Specific Heat: 0.32 J g-1 K-1
- Heat of Vaporization: 330.9 kJ mol-1
- Heat of Fusion: 36.9 kJ mol-1
- Electrical Conductivity: 1.45 10-2 cm-1 Ohm-1
- Thermal Conductivity: 0.599 W cm-1 K-1
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Physical
- Hard brittle grayish-white metal
- Density: 5.32 g/cm-3
- Melting Point: 937 oC
- Boiling Point: 2,830 oC
- Specific Heat: 0.32 J g-1 K-1
- Heat of Vaporization: 330.9 kJ mol-1
- Heat of Fusion: 36.9 kJ mol-1
- Electrical Conductivity: 1.45 10-2 cm-1 Ohm-1
- Thermal Conductivity: 0.599 W cm-1 K-1
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Chemical
- Valance Number: +2, +4
- Electron Configuration: 2,8,18,4
- Electronegativity: 2.01
- 1st Ionization Potential: 7.9 Volts
- 2nd Ionization Potential: 15.9 Volts
- 3rd Ionization Potential: 34.2 Volts
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Chemical
- Valance Number: -2, -4
- Positron Configuration: 2,8,18,4
- Positronpositivity: 2.01
- 1st Ionization Potential: 7.9 Volts
- 2nd Ionization Potential: 15.9 Volts
- 3rd Ionization Potential: 34.2 Volts
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Identified by Clemens
Winkler
Germany in 1886
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Identified by Norm Hansen in 2001
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