| 1. | This completes the explanation of the octet rule in this case.
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| 2. | But you said something about the octet rule.
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| 3. | It is also the lightest element to easily produce stable exceptions to the octet rule.
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| 4. | With only three valence electrons per boron atom, simple covalent bonding cannot fulfil the octet rule.
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| 5. | How did people discover the chemical bond and the octet rule before the discovery of the electron?
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| 6. | Period 2 elements obey the octet rule in that they need eight electrons to complete their valence shell.
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| 7. | However other models describe the bonding using only s and p orbitals in agreement with the octet rule.
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| 8. | The other thing is that I'm really confused at how people came to realise the octet rule.
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| 9. | In this model, the structure obeys the octet rule and the charge distribution is in agreement with the electronegativity of the atoms.
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| 10. | In these simple cases where the octet rule is obeyed, the exceptions, and for which the valence is less clearly defined.
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