Now that you have read the Chemistry Lecture Notes on Basic Atomic Structure (Atoms & Ions), you should now do the Basic Atomic Structure (Atoms & Ions) tutorial in ChemTutor Excalibur. This will give you a chance to apply what you have just read, which is the only way to truly learn chemistry. ChemTutor Excalibur provides excellent chemistry help and it will give you practice on every type of Basic Atomic Structure problem you are likely to see on any chemistry test or exam at the high school or college level. It will also give you a detailed explanation of how to solve each of those problems. Then you should work through the Chemistry Lecture Notes on Chemical Nomenclature.