Periodic Table of the Elements: Oxygen
Related article: Periodic Table of the Elements (table)Periodic Table of the Elements
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| Atomic Number: | 8 |
| Atomic Symbol: | O |
| Oxygenoxygen, gaseous chemical element; symbol O; at. no. 8; interval in which at. wt. ranges 15.99903–15.99977; m.p. −218.4°C;; b.p. −182.962°C;; density 1.429 grams per liter at STP; valence −2. ..... Click the link for more information. | |
| Atomic Weight: | [15.99903; 15.99977] |
| Electron Configuration: | 2 · 6 |