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The Lewis Octet Rule

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Summarize the essential features of the Lewis octet rule. The octet rule applies mainly to the second-period elements. Explain.

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The essential features of the Lewis Octet Rule are summarized. The expert explains why the octet rule applies mainly to the second-period element.

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The Lewis Octet Rule is a simple model for explaining how certain compounds (ionic or covalent) form. Essentially, atoms tend to form compounds in order to fill their valence shell. That means that they tend to form compounds so that they end up with 8 electrons in their outer shell. This is based on the understanding that the electronic structure of a noble gas is the most stable electronic structure, and atoms tend to form compounds in order to obtain an electronic structure resembling the noble gas in its ...

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