Good Book on Chemical Physics. The book is based on a lecture course given by the authors at the University of Sheffield. The structure of the atom, the calculation of its energy levels, polyatomic molecules, the method of molecular orbitals and much more are considered in detail. In preparation for the postgraduate exam in the specialty of 01.04.17 (chemical physics, including the physics of combustion and explosion), the entire first part of the program (structure of matter) was compiled from this book