Oxygen Element Properties, Non-Metal, Chalcogen Group, Periodic Table of the Elements
Oxygen
|
Oxygen Element Properties |
 | | General |
| Name | Oxygen |
| Symbol | O |
| Number | 8 |
| Group Number | 16 |
| Group | Non-Metal, Chalcogen |
| Block | p |
| Density | 0.001429 g/cm3 |
| Atomic Weight | 15.9994 g/mol |
| Atomic Volume | 14.0 cm3/mol |
| Discover | 1774 |
|
| States |
| State | Gas |
| Melting Point | 54.36 K |
| Boiling Point | 90.20 K |
| Triple Point | Nil |
| Critical Point | 154.59 K |
| Heat of Fusion | 0.444 kJ/mol |
| Heat of Vaporization | 6.82 kJ/mol |
|
| Energies |
| First Ionization Energy | 1313.9 kJ/mole |
| Second Ionization Energy | 3388.2 kJ/mole |
| Third Ionization Energy | 5300.3 kJ/mole |
| Electronegativity | 3.44 |
| Electron Affinity | 140.97875 kJ/mole |
| Specific Heat | 0.92 J/gK |
| Heat Atomization | 249 kJ/mole atoms |
|
| Oxidation and Electrons |
| Shells | 2,6 |
| Electron Configuration | 1s2 2s2 2p4 |
| Minimum Oxidation Number | -2 |
| Maximum Oxidation Number | 2 |
| Minimum Common Oxidation Number | -2 |
| Maximum Common Oxidation Number | 0 |
|
| Appearance and Characteristics |
| Crystal Structure | cubic |
| Characteristics | diatomic,2 forms: O2, O3 |
| Color | colorless |
| Uses | rocket fuel, steel mfr. |
| Hardness | mohs |
| Toxicity | No |
|
| Reactions |
| Reaction with Air | None |
| Reaction with 6M HCl | None |
| Reaction with 15M HNO3 | None |
| Reaction with 6M NaOH | None |
|
| Other Forms |
| Number of Isotopes | 3 |
| Hydride | H2O |
| Oxide | O2 O3 |
| Chloride | Cl2O ClO2 Cl2O7 |
|
| Radius |
| Atomic Radius | 73 pm |
| Ionic Radius (1+ ion) | Nil |
| Ionic Radius (1- ion) | Nil |
| Ionic Radius (2+ ion) | Nil |
| Ionic Radius (2- ion) | 126 pm |
| Ionic Radius (3+ ion) | Nil |
|
| Conductivity |
| Thermal Conductivity | 0.03 J/m-sec-deg |
| Electrical Conductivity | 0 1/mohm-cm |
| Polarizability | 0.793 A3 |
|
| Abundance |
| Source | Air |
| Relation Abundance Solar System | 7.377 log |
| Abundance Earth's Crust | 5.7 log |
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