For $\mathrm{CN}^{-}$, Carbon (C) has 4 valence electrons, Nitrogen (N) has 5, and the extra electron from the negative charge gives us a total of 10 valence electrons. For $\mathrm{ClO}^{-}$, Chlorine (Cl) has 7 valence electrons, Oxygen (O) has 6, and the extra
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