How can I write the Lewis formula for this please? Thanks!

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1 Answer
tcw1
Mar 21, 2018

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Explanation:

Please excuse my MS Paint.
Start by drawing a standard structure with carbon in the middle, as hydrogen can only form one bond.
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The center carbon has too many bonds (maximum of 4), so we will shift two hydrogens over to the other carbon.
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Now each carbon has too few bonds, so we will make a double bond between them.
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This is the correct structure of C2H4, ethylene. The octet rule is kept.

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