Type of bonds, transition between the main types of bonding general properties of ionic solids, ionic compounds of the type (AX), lattice energy  , ionic compound of type (AX2),layer structure , stoichometric defects, rules for linear combination of atomic orbitals, theories of bonding in metals the course give introduction to transition metal chemistry , ligand and coordination geometry , stability of coordination complexes , MO- theory and crystal field theory , spectroscopy of coordination complexes , magnetism and magnetic properties.