To draw Lewis structure:
Total valence electrons:
Group Valence Electrons
I 7A 1 × 7 e– = 7 e–
Br 7A 2 × 7 e– = 14 e–
-1 charge: (gained e-) Add: 1 e–
Total: 22 valence e–
Halogens → form 1 bond (if not central atom)
What is the lewis structure for IBr 2-?
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