I've been here for just a few days and almost $ 3/4th $ of those few days I've been trying to find out the thing mentioned in the heading. I get absolutely no results when I search for it. And when I search Lewis Structures all I find is this : What are options for type-setting high quality Lewis structures? and some other irrelevant results. Everything that I know about writing them comes from that code fragment that @andselisk has given in his answer to the above question. Please help me in this matter.
Please don't misunderstand me. I'm not asking you people to teach me how to draw these. I just want to know how I can add them to my answers or questions.