Daftar Isi:1. Background 2. Energy 3. The First Principle Energy in Not Continuous 4. Electron in AStoms 5. Chemical Bonding and Molecular Structure 6. Atomic and Molecular Spectra 7. The Second Principle The Higher the Fewer 8. Chemical Equilibrium 9. The States of Matter 10. Mictures and Solutions 11. Rates of Chemical Reactions Ansers to Problems Appendix 1 Thermochemical Data at 298.15 K Appendix 2 Hydrogen-Like Wave Functions Appendix 3 Symmetry Appendix 4 Units and Fundamental Constants