3.1.    PERIODICITY
a.       Periodicity
b.      Periodic Trends in Physical Properties
c.       Period Trends in Chemical Properties
d.      Diagonal Relationship
3.2.    CHEMISTRY OF SELECTED ELEMENTS 
a.       Electronic configuration and oxidation states
b.      Uses of selected Elements and their compounds
c.       Hazards of selected elements and compound
3.3.    TRANSITION ELEMENTS
a.       Characteristics of Transition  Elements (Reference to atomic Nos 21-30
b.      Complex formation and ligands