Oxygen (O) Properties |
AOxygen (AO)
Properties 1/ |
Nuclear (8 protons/electrons)
- Atomic Number: 8
- Atomic Mass: 15.999
- Atomic Energy: 0.0239 Ergs
- Group: 16; Period: 2
- Family: Non-Metals
- Bonding Radius: 0.73 Angstroms
- Atomic Radius: 0.65 Angstroms
- Atomic Volume: 14.0 cm3mol-1
- 15
Isotopes: 12O to 26O
- Stable Isotopes: 16O,17O,18O
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Nuclear (8 Aprotons/positrons)
- Atomic Number: 8
- Atomic Mass: 16.999
- Atomic Energy: 0.0239 Ergs
- Group: 16; Period: 2
- Family: Non-Metals
- Bonding Radius: 0.73 Angstroms
- Atomic Radius: 0.65 Angstroms
- Atomic Volume: 14.0 cm3mol-1
- 15 AIsotopes: 12AO
to 26AO
- Stable AIsotopes: 16AO,17AO,18AO
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Physical
- Colorless, odorless, tasteless gas
- Density: 0.001429 g cm-3
- Melting Point: -218.4 oC
- Boiling Point: -183.0 oC
- Specific Heat: 0.92 J g-1 K-1
- Heat of Vaporization: 3.41 kJ mol-1
- Heat of Fusion: 0.2226 kJ mol-1
- Electrical Conductivity: ? 106 cm-1 Ohm-1
- Thermal Conductivity: 0.000267 W cm-1 K-1
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Physical
- Colorless, odorless, tasteless gas
- Density: 0.00143 g/cm-3
- Melting Point: -218.4 oC
- Boiling Point: -183.0 oC
- Specific Heat: 0.92 J g-1 K-1
- Heat of Vaporization: 3.41 kJ mol-1
- Heat of Fusion: 0.2226 kJ mol-1
- Electrical Conductivity: ? 106 cm-1 Ohm-1
- Thermal Conductivity: 0.000267 W cm-1 K-1
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Chemical
- Valance Number: -2
- Electron Configuration: 2,6
- Electronegativity: 3.44
- 1st Ionization Potential: 13.6 Volts
- 2nd Ionization Potential: 35.1 Volts
- 3rd Ionization Potential: 54.9 Volts
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Chemical
- Valance Number: +2
- Positron Configuration: 2,6
- Positronpositivity: 3.44
- 1st Ionization Potential: 13.6 Volts
- 2nd Ionization Potential: 35.1 Volts
- 3rd Ionization Potential: 54.9 Volts
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Identified by Joseph Priestly, Carl Wilhelm
Scheele, England and
Sweden, in 1774
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Identified by Norm Hansen in 2001
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