Discuss the exceptions of octet rule with examples.
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Another Explanation (5):
| Exception | Example | Explanation |
|---|---|---|
| Incomplete Octet | Boron trifluoride (BF3) | Boron only has 6 valence electrons. |
| Expanded Octet | Sulfur hexafluoride (SF6) | Sulfur has 12 valence electrons. Possible for elements in period 3 and beyond. |
| Odd-Electron Molecules | Nitrogen dioxide (NO2) | Contains an unpaired electron, resulting in an odd number of valence electrons. |