Chapter 6 in my chemistry book is about electronic structure of atoms dealing with photons and wavelengths and all that... and I kind of skipped around in the chapters before it because we have a quiz on ONLY chapter 6, and our test isn't for a while... BUT I don't know if I need to know everything about balancing equations and ions and isotopes and compounds and nomenclature and stuff to be able to get the stuff from chapter 6. They seem related but unrelated to the point where I can just study and know chapter 6 for my quiz. Help?