We’re being asked to draw a Lewis structure for N2H4.
We first need to determine the total number of valence electrons present in the molecule:
Group Valence Electrons
N 5A 2 × 5 e– = 10 e–
H 1A 4 × 1 e– = 4 e–
Total: 14 valence e–
Draw the Lewis structure for N2H4.
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