§14.2 The elements of oxygen family §14.1 The elements of nitrogen

§12.1 The general properties of the s-block elements §12.4 The particularity of Li and Be The diagonal relationship §12.3 The properties of the alkali and alkaline earth compounds §12.2 The elementary substances

§10.1 The Structures and Types of Crystals §10.5 Network Crystals §10.4 Molecular Crystals §10.3 Ionic Crystals §10.2 Metallic Crystals

8.1 The atomic structure of hydrogen 8.2 The atomic structure of many-electron atoms 8.3 Periodic law of elements

§ 6.3 Equilibrium between two precipitates § 6.2 Forming and dissolving of precipitates § 6.1 Solubility and solubility product

§ 5.4 Buffer solutions § 5.3 Equilibrium in solutions of weak acids and weak bases § 5.2 Ionization equilibrium of water and the pH scale § 5.1 The Brønsted theory of acids and bases

§7.1 The fundamental concepts of redox reactions §7.2 Electrochemical cells §7.3 Electrode potentials §7.4 Application of electrode potentials

§ 5.4 Buffer solutions § 5.3 Equilibrium in solutions of weak acids and weak bases § 5.2 Ionization equilibrium of water and the pH scale § 5.1 The Brønsted theory of acids and bases

2.1 Basic terms in thermodynamics 2.2 the First law of thermodynamics 2.3 Heat of a chemical reaction 2.4 the Hess's law

§16.5 Fe Co Ni §16.4 Mn §16.3 Cr Mo W * §16.2 Titanium Vanadium §16.1 Outline on the d-block elements