What is the Oxidation State of Chlorine inHClO3? The average oxidation state of the 1 Cl atom in HClO3is +5. What is the Oxidation State of Hydrogen inHClO3? The average oxidation state of the 1 H atom in HClO3is +1. ElementOxidation Number (Avg)AtomsCountElectronegativity ...
, however, oxidation numbers are written with the charge is written before the number. There are several rules that apply to oxidation numbers: 1. The sum of all oxidation numbers in a compound must equal zero. - For example: What are the oxidation numbers for sodium and chlorine in NaCL?