Facts101 is your complete guide to Principles of Modern Chemistry. In this book, you will learn topics such as Atomic Shells and Classical Models of Chemical Bonding, Introduction to Quantum Mechanics, Quantum Mechanics and Atomic Structure, and Quantum Mechanics and Molecular Structure plus much more. With key features such as key terms, people and places, Facts101 gives you all the information you need to prepare for your next exam. Our practice tests are specific to the textbook and we have designed tools to make the most of your limited study time.