 We're going to look at the three-dimensional nature of the S-oritals. Assume my fingers are the nucleus. You have two electrons that are the most probable location is here and here. So we know that the electron is somewhere here or here, and there are two of them. Then if we take our Y, we have another dimension. And then if we take our Z, we have a third dimension. So let me put them together. Now we have X, Y-axis, and Z-axis. So the most probable location, we can have two electrons in our blue orbital. We can have two electrons in our Y orbital, our orange orbital, and we can have two electrons in the Z. So that gives us a total possibility in the piece of having six electrons.