Lewis structure of HCN (hydrogen cyanide)

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Lewis structure of HCN: H single-bonded to C, triple-bonded to N with one lone pair — The Lewis structure of hydrogen cyanide, HCN: hydrogen single-bonded to a central carbon, which is triple-bonded to nitrogen. The nitrogen has one lone pair, for 10 valence electrons in all.

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Answer key

HCN: 10 valence electrons
1 single bond, 1 triple bond; 1 lone pair

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