3 Questions

1. I have recently completed the last unit on electron configuration. I must say its been my favorite unit besides electrochemistry.
2. Recently I have learned how to do a proper Lewis Structure. Before I was just giving all the elements 8 electrons, now I know the rules and the number of bonds one can make.
3. I have some trouble remembering that in order to count the number of electrons in a molecule you have to add the number of the column. I keep thinking for some reason I'm supposed to put down a number that corresponds to their ions. So I just have to keep in mind that its the number of the column.