Magnesium (Mg) Properties |
AMagnesium (AMg)
Properties 1/ |
Nuclear (12 protons/electrons)
- Atomic Number: 12
- Atomic Mass: 24.305
- Atomic Energy: 0.0363 Ergs
- Group: 2 ; Period: 3
- Family: Alkaline
Earth Metals
- Bonding Radius: 1.36 Angstroms
- Atomic Radius: 1.72 Angstroms
- Atomic Volume: 13.97 cm3mol-1
- 18
Isotopes: 20Mg
to 37Mg
- Stable Isotopes: 24Mg,
25Mg, 26Mg
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Nuclear (12 Aprotons/positrons)
- Atomic Number: 12
- Atomic Mass: 24.305
- Atomic Energy: 0.0363 Ergs
- Group: 2 ; Period: 3
- Family: Alkaline
Earth Metals
- Bonding Radius: 1.36 Angstroms
- Atomic Radius: 1.72 Angstroms
- Atomic Volume: 13.97 cm3mol-1
- 18 AIsotopes: 20AMg
to 37AMg
- Stable AIsotopes: 24AMg,
25AMg, 26AMg
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Physical
- Grayish-white metal
- Density: 1.738 g cm-3
- Melting Point: 638.8 oC
- Boiling Point: 1,090 oC
- Specific Heat: 1.02 J g-1 K-1
- Heat of Vaporization: 127.4 kJ mol-1
- Heat of Fusion: 8.95 kJ mol-1
- Electrical Conductivity: 0.226 106 cm-1 Ohm-1
- Thermal Conductivity: 1.56 W cm-1 K-1
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Physical
- Grayish-white metal
- Density: 1.74 g/cm-3
- Melting Point: 638.8 oC
- Boiling Point: 1,090 oC
- Specific Heat: 1.02 J g-1 K-1
- Heat of Vaporization: 127.4 kJ mol-1
- Heat of Fusion: 8.95 kJ mol-1
- Electrical Conductivity: 0.226 106 cm-1 Ohm-1
- Thermal Conductivity: 1.56 W cm-1 K-1
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Chemical
- Valance Number: +2
- Electron Configuration: 2,8,2
- Electronegativity: 1.31
- 1st Ionization Potential: 7.65 Volts
- 2nd Ionization Potential: 15. 0 Volts
- 3rd Ionization Potential: 80.1 Volts
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Chemical
- Valance Number: -2
- Positron Configuration: 2,8,2
- Positronpositivity: 1.31
- 1st Ionization Potential: 7.65 Volts
- 2nd Ionization Potential: 15.0 Volts
- 3rd Ionization Potential: 80.1
Volts
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Identified by Sir Humphrey Davy, England,
in 1808.
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Identified by Norm Hansen in 2001
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