Noble Gases 
Simple ions
The ionic bond
The covalent bond
Exercises about covalent bonds
The metal bonding
Ions
Presentation of ionic substances
The solubility of ionic substances
Exercises about formulas and solubility of ionic substances 
Table of solubilities
Table of electronegativities
Electronegativity and type of bonds
The Lewis model of the covalent bond
The Lewis model of the dative bond
The Lewis model and formal charges;
The dative bond: Establish structures
The dative bond: Correct structures
Covalent bonding: Establish structures of molecules
Covalent bonding: Establish ion structures
Covalent bonding: Correct molecule structures;
Covalent bonding: Correct ion structures
The metallic bond: Properties of metals
Introduction to molecular Orbitals
The size of ions
Ionic lattices
Cesium chloride and sodium chloride lattices
The number of coordination in the sodium chloride lattice
Calculations on cesium chloride unit cell
Calculations on sodium chloride unit cell
Formation of an ionic compound (animation)