Cl → Group 7A → 7 val. e-
O → Group 6A → 6 val. e- x 2 = 12 val. e-
-1 charge +1 e-
Total valence e- = 20 e-
Chlorine dioxide gas (ClO2) is used as a commercial bleaching agent. It bleaches materials by oxidizing them. In the course of these reactions, the ClO2 is itself reduced.
When a ClO2 molecule gains an electron, the chlorite ion, ClO2-, forms. Draw the Lewis structure for ClO2-.
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