 So let's do this one now, which are named another ion that these ions are isoelectronics with. So remember isoelectronics, same electron configuration as. So ion is a charged atom, so it's not the noble gas, because remember that's not charged. It doesn't gain or lose electrons. So it's going to be something on the same period, or that goes to the same noble gas configuration, but it's still an ion. So in the case of mg2, right, it's, well, for me, I guess I would write it's nearest neighbor, which is Na+. There's other ones you could write. In fact, f minus is actually isoelectronic with it, too. But if I were to write it, I'd probably do it's nearest neighbor, which is O2 minus. And in fact, all three, or all four of these are isoelectronic with each other. Why? Because they're all trying to attain the neon electron configuration. So f minus needs to gain one electron, or f needs to gain one electron to become f-minus. O needs to gain to become O2 minus and get the neon configuration. Sodium needs to lose its one electron to get that plus and attain the neon configuration. And magnesium needs to lose two electrons to attain the neon configuration plus two. I mean, there's others. In fact, you could do N3 minus. You could do Al3 plus. Go to the neon configuration when they either lose or gain their particular. Okay, so they're all, these are all isoelectronic with each other. So all of these ions, these three, these three, all six of them are isoelectronic with each other because they're isoelectronic with neon. Okay, so hopefully that answers that question in a little more detail than I was expecting.