1Determine the valency of alkali metals.
2Describe the behaviour of alkali elements in the chemical reactions.
3Deduce the general properties of alkali metals.
4Determine the valency of alkali earth metals.
5Describe the behaviour of alkali earth metals in chemical reactions.
6Deduce the general properties of alkali earth metals.
7Define halogen group.
8Deduce the general properties of halogens.
9Describe the properties of elements and their uses.
10Appreciate the role of scientists and their efforts in studying elements.