When halogens bind to more electropositive elements (compared it itself), they show -1 oxidation state. When halogens bind to more electronegative elements (compared it itself), they show +1 oxidation state.
The halogens (group 17) have an oxidation number of -1, though the halogens below fluorine can have other oxidation numbers as well. Hydrogen can also have an oxidation number of -1 when it forms hydrides.
-1
Most common is -1. But halogens (except fluorine) are known to exhibit oxidation numbers upto +7 in their compounds.
Yes. All of the halogens usually have this oxidation number in their compounds.
A valence of -1, a monovalent anion as halogens ions.
Potassium and Lithium
Fluorine: -1 Chlorine: -1, +1, +3, +5, +7 Bromine: -1, +1, +3, +5, +7 Iodine: -1, +1, +3, +5, +7 The normal oxidation state of halides is -1, but with, for example, chlorine other oxidation states exist. Hypochlorites (+1), Chlorites (+3), Chlorates (+5), Perchlorates (+7). The same is true for all halogens, with the exception of fluorine, that seems to like it's -1 status and won't form fluorates.
H = +1 oxidation states S = -2 oxidation states
0 and 1 oxidation states
0, 1 and 2 oxidation states
3 Oxidation states: 0, 1 and 2
O = -2 oxidation state H = +1 oxidation state