Now, in this lecture, I'd like to continue our discussion on Lewis dot structures. Now, before, we only spoke about neutral species or neutral molecules. Now we're going to draw Lewis dot structures for charged species or charged molecules. So let's begin with A. In a, we have an oh or a hydroxide molecule that has a negative one charge on the oxygen. Now, that negative one charge on the oxygen simply means that oxygen has one more electron than it does in its neutral state.