I know that element specific tags have been discussed before. The consensus seemed to be that they are unnecessary and I agree with that. However, I wonder if hydrogen might be an exception. It's ubiquitous nature and the fact that it has it's own unique bond make me think yes but I cant articulate this well enough for a satisfactory tag wiki entry. Thoughts?
There is both a 'tagging' tag and a 'tags' tag here. Perhaps we need a meta meta.