To do so, we shall calculate the total valence electrons first:
The total number of valence electrons present in ClF2-is:
Group Valence Electrons
Cl 7A 1 × 7 e– = 7 e–
F 7A 2 × 7 e– = 14 e–
From -1 charge: +1 e-
Total: 22 valence e–
Add lone pairs to these Lewis structures of polyhalide ions.
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