(1) Following the molecular formula, C appears to be the central atom
(2) The total number of valence electrons present in CH3N3 is:
Group Valence Electrons
C 4A 1 × 4 e– = 4 e–
H 1A 2 × 1 e– = 2 e–
N 5A 3 × 5 e– = 15 e–
Total: 21 valence e–
(3) The bonding preferences of each element in the molecule is as follows:
• Carbon: prefers to form 4 bonds
• Hydrogen: only forms 1 bond
• Oxygen: prefers to form 2 bonds
Draw the Lewis structure (including resonance structures) for methyl azide (CH3N3). For each resonance structure, assign formal charges to all atoms that have formal charge.
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