As oxygen is a highly electronegative element, it tends to gain 2 electrons in most cases.
The only exceptions are the peroxides, superoxides, ozonides and the oxy-fluoro compounds.
the answer is -2.Related Information:The oxidation number of oxygen when it appears as an element is 0. The oxidation number in all compounds but peroxides is -2. The oxidation number of oxygen in peroxides is -1.
In FeO the oxidation number of iron is 2+ and the oxidation number of oxygen is 2-.
Oxygen pretty much always has an oxidation number of -2 (there are few exceptions.) A better question is "What is arsenic's oxidation number in this ion?" It would be +5.
Oxidation number of Li is +1. Oxidation number of oxygen is -2.
Carbon atoms oxidation number is +2.Hydrogen's oxidation number is +1.Oxygen's oxidation number is -2.
The oxidation number of oxygen is -2 in most of its compounds
the answer is -2.Related Information:The oxidation number of oxygen when it appears as an element is 0. The oxidation number in all compounds but peroxides is -2. The oxidation number of oxygen in peroxides is -1.
In FeO the oxidation number of iron is 2+ and the oxidation number of oxygen is 2-.
In the compound Co2O3 cobalt has an oxidation number of 3 while oxygen has an oxidation number is -2.
Oxygen pretty much always has an oxidation number of -2 (there are few exceptions.) A better question is "What is arsenic's oxidation number in this ion?" It would be +5.
Oxidation number of Li is +1. Oxidation number of oxygen is -2.
Silicon's oxidation number is +4.Oxygen's oxidation number is -2
Carbon atoms oxidation number is +2.Hydrogen's oxidation number is +1.Oxygen's oxidation number is -2.
the most common oxidation number for oxygen is -2.
It is a neutral oxide. Oxygen shows -2 oxidation number.
in NiO2 the oxidation number for Ni is 4+ and the oxidation number for oxygen is 2-.
Hydrogen's oxidation number is +1.Chlorin's oxidation number is +1.Oxygen's oxidation number is -2.