Cnh4 lewis structure

Asked by maham237 @ in Chemistry viewed by 1136 People

Draw an alternative Lewis (resonance) structure for the compound given in part (a). Show the unshared pairs and nonzero formal charges in your structure. Don\'t use radicals for CH2OH

Answered by maham237 @


1. The Lewis structure for CH₃O⁻ or methoxide ion is shown in the picture attached. Each single bond is composed of 2 bonding electrons. The electron dots are lone electrons are the nonbonding electrons.

2. The unshaired pairs are the electrons dots surrounding the oxygen atom. From the picture, there are 3 unpaired electrons or lone pairs.

3. The formal charge of each element has the following equation:
Formal charge = Valence electrons - Nonbonding electrons - (Bonding electrons/2)

C: 4 - 0 - (8/2) = 0
O: 6 - 6 - (2/2) = -1
H: 1 - 0 - (2/2) = 0

Therefore, the nonzero formal charge is -1 for the oxygen atom.

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