Yes, electronegative doesn’t mean electrical charge, but simply that it’s in the negative of the potential number of electrons in that period. It’s a chemical term meant to explain how likely it is to attract the needed electrons, so it increases as it gets closer to the noble elements. I mean, it doesn’t express the difference from the ideal number of electrons but the likelyness that it will receive an electron.
The periodic table is a nice overview, but it doesn’t really show how stuff works in any logical way.