The average oxidation state of the 2 Na atoms in Na2(S2O7) is +1. ElementOxidation Number (Avg)AtomsCountElectronegativity O-2-2 (×7)73.4 S+6+6 (×2)22.6 Na+1+1 (×2)20.9 🛠️ Calculate Oxidation Numbers Instructions Enter the formula of a chemical compound to find the oxidation...