Fundamentals of Chemistry: A Modern Introduction focuses on the formulas, processes, and methodologies used in the study of chemistry. The book first looks at general and historical remarks, definitions of chemical terms, and the classification of matter and states of aggregation. The text then discusses gases. Ideal gases; pressure of a gas confined by a liquid; Avogadro's Law; and Graham's Law are described. The book also discusses aggregated states of matter, atoms and molecules, chemical equations and arithmetic, thermochemistry, and chemical periodicity. The text also highlights the electronic structures of atoms. Quantization of electricity; spectra of elements; quantization of the energy of an electron associated with nucleus; the Rutherford-Bohr nuclear theory; hydrogen atom; and representation of the shapes of atomic orbitals are explained. The text also highlights the types of chemical bonds, hydrocarbons and their derivatives, intermolecular forces, solutions, and chemical equilibrium. The book focuses as well on ionic solutions, galvanic cells, and acids and bases. It also discusses the structure and basicity of hydrides and oxides. The reactivity of hydrides; charge of dispersal and basicity; effect of anionic charge; inductive effect and basicity; and preparation of acids are described. The book is a good source of information for readers wanting to study chemistry.