Variations in structural formulas: example sulfate ion

[mcfaker123]

Hello,

I have seen 2 kind of "lewis notations" for molecules, I will give an example:


Is there anyone on this forum who is well familiar with the second notation? I Dont see any formal charge next to the S and other 2 O's, does that mean that the formal charges of S and the 2 O's are zero?

Now if that is true im very confused then, because the first notation has 2+ as formal charge for S!! How is that possible? Im really confused here, could someone please help me out?

Thanks in advance!!