It's important to note that this is an ion, meaning it has a charge. In this case, it has a -2 charge.
Here's why:
* Sulfur (S) is in group 16 of the periodic table, meaning it typically forms a -2 charge.
* Oxygen (O) is in group 16 as well, also typically forming a -2 charge.
* With three oxygen atoms (-2 charge each), that's a total of -6.
* To balance the charge, sulfur needs a +4 charge.
However, in most compounds, sulfate exists as a polyatomic ion with a -2 charge. This is because sulfur can form multiple bonds with oxygen.
