Beryllium (Be) Properties |
ABeryllium (ABe)
Properties 1/ |
Nuclear (4 protons/electrons)
- Atomic Number: 4
- Atomic Mass: 9.0122
- Atomic Energy: 0.0135 Ergs
- Group: 2 ; Period: 2
- Family: Alkaline
Earth Metals
- Bonding Radius: 0.90 Angstroms
- Atomic Radius: 1.40 Angstroms
- Atomic Volume: 5.0 cm3mol-1
- 10
Isotopes: 5Be to 14Be
- Stable Isotopes: 9Be
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Nuclear (4 Aprotons/positrons)
- Atomic Number: 4
- Atomic Mass: 9.0122
- Atomic Energy: 0.0135 Ergs
- Group: 2 ; Period: 2
- Family: Alkaline
Earth Metals
- Bonding Radius: 0.90 Angstroms
- Atomic Radius 1.40 Angstroms
- Atomic Volume: 5.0 cm3mol-1
- 10 AIsotopes: 5ABe
to 14ABe
- Stable Isotopes: 9ABe
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Physical
- Strong, hard, gray-white metal. Lightest rigid metal
- Density: 1.848 g cm-3
- Melting Point: 1,278 oC
- Boiling Point: 2,970 oC
- Specific Heat: 1.82 J g-1 K-1
- Heat of Vaporization: 292.4 kJ mol-1
- Heat of Fusion: 12.2 kJ mol-1
- Electrical Conductivity: 0.313 106 cm-1 Ohm-1
- Thermal Conductivity: 2.0 W cm-1 K-1
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Physical
- Strong, hard, gray-white metal. Lightest rigid metal
- Density: 1.85 g/cm-3
- Melting Point:1,278 oC
- Boiling Point: 2,970 oC
- Specific Heat: 1.82 J g-1 K-1
- Heat of Vaporization: 292.4 kJ mol-1
- Heat of Fusion: 12.2 kJ mol-1
- Electrical Conductivity: 0.313 106 cm-1 Ohm-1
- Thermal Conductivity: 2.0 W cm-1 K-1
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Chemical
- Valance Number: +2
- Electron Configuration: 2,2
- Electronegativity: 1.57
- 1st Ionization Potential: 9.32 Volts
- 2nd Ionization Potential: 18.2 Volts
- 3rd Ionization Potential: 153.9 Volts
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Chemical
- Valance Number: -2
- Positron Configuration: 2,2
- Positronpositivity: 1.57I
- 1st Ionization Potential: 9.32 Volts
- 2nd Ionization Potential: 18.2 Volts
- 3rd Ionization Potential: 153.9 Volts
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Identified by Fredrich
Wohler, & A. A. Bussy Germany and France in 1798
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Identified by Norm Hansen in 2001
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