THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
CHEMICAL FAMILIES
CHEMICAL FAMILIES
CHEMICAL FAMILIES
CHEMICAL FAMILIES
CHEMICAL FAMILIES
CHEMICAL FAMILIES
CHEMICAL FAMILIES
CHEMICAL FAMILIES
CHEMICAL FAMILIES
CHEMICAL FAMILIES

Atomic and mass numbers.
First twenty elements of the periodic table.
Isotopes.
Electronic configuration.
Electronic configuration in diagrams.
Periods of the periodic table.
Groups of the periodic table.
R.M.M. and isotopes.
Positive ions and ion formation.
Positive ions representation.
Negative ions and ion formation.
Valencies of metals.
Valencie of non-metals.
Valencies of radicals.
Oxidation number.
Electronic configuration, ion formed, valency and oxidation number
Chemical formulae of compounds. - Elements of equal valencies.
Chemical formulae of compounds. -Elements of unequal valencies.
Chemical formulae of compounds. -Elements of variable valencies.
Chemical equations.
Balanced chemical equations.
Balanced chemical equations.(contd)
Alkali metals. Atomic and ionic radii of alkali metals
Ionisation energy of alkali metals.
Physical properties of alkali metals.
Chemical properties of alkali metals.
Reaction of alkali metals with chlorine gas.
Compounds of alkali metals.
Uses of alkali metals.
Alkaline Earth metals Atomic and ionic radii of alkaline earth metals.
Physical properties of alkaline earth metals.
Electrical properties of alkaline earth metals.

By the end of the lesson, the learner should be able to:


Name the subatomic particles in an atom.
Define atomic number and mass number of an atom.
Represent atomic and mass numbers symbolically.

Exposition on new concepts;
Probing questions;
Brief discussion.

text book
Periodic table.
Chart  ion model.
The periodic table.
The periodic
Chart ? comparative properties of Li, Na, K.
Sodium, chlorine.
Some alkaline earth metals.
Alkaline earth metals.

K.L.B.
BOOK II

PP. 1-3