Sulfur has a 3p 'sub-level' with 4 electrons in it (3s
23p
4). It can share elctrons from this. Sulfur compounds can have oxidation numbers of 6,4,2 and -2. Sulfur can be happy(!) with 2,4 or 6 bonds (I should really upgrade my molymod collection with sulfur atoms with 2 and 4 bonds
).
In this case I think sulfur has an oxidation number of +6, not -6.
(Oxygens each -2 so -8 in sulfuric acid)
(Hydrogens +1 so +2 in sulfuric acid)
(Sulfur must therefore have an oxidation number of +6 in sulfuric acid)
Correct me if I'm wrong or inaccurate!
Sulfur chemistry is REALLY interesting- especially in organic chemistry- just look at what happens when you cut onions and garlics
!