So our charge will be four. So this is an anion. So now let's look at Florida. Now, fluorine has nine protons and nine electrons. So once again, our nucleus will have nine protons, and our mutual fluorine atom will have nine electrons floating around the nucleus. So once again, let's apply our octave rule and let's see how many electrons this fluorine atom, this neutral fluorine atom needs to gain to obtain a noble gas configuration.