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Chemistry
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TERM II
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1

Opening And Revision

2 1
CHEMICAL FAMILIES
Alkali metals. Atomic and ionic radii of alkali metals
By the end of the lesson, the learner should be able to:





Identify alkali metals.
State changes in atomic and ionic radii of alkali metals.

Q/A to reviews elements of group I and their electronic configuration.
Examine a table of elements, their symbols and atomic & ionic radii.
Discussion & making deductions from the table.
The periodic
K.L.B. BOOK IIPP 28-29
2 2
CHEMICAL FAMILIES
Alkali metals. Atomic and ionic radii of alkali metals
By the end of the lesson, the learner should be able to:





Identify alkali metals.
State changes in atomic and ionic radii of alkali metals.

Q/A to reviews elements of group I and their electronic configuration.
Examine a table of elements, their symbols and atomic & ionic radii.
Discussion & making deductions from the table.
The periodic
K.L.B. BOOK IIPP 28-29
2 3-4
CHEMICAL FAMILIES
Ionisation energy of alkali metals.
Physical properties of alkali metals.
By the end of the lesson, the learner should be able to:
State changes in number of energy levels and ionisation energy of alkali metals.
State and explain trends in physical properties of alkali metals.
Examine a table of elements, number of energy levels and their ionization energy.
Discuss the trend deduced from the table.

Examine a table showing comparative physical properties of Li, Na, and K.
Q/A: Teacher asks probing questions as students refer to the table for answers.
Detailed discussion on physical properties of alkali metals.
text book
Chart ? comparative properties of Li, Na, K.
K.L.B. BOOK II
K.L.B. BOOK IIPP 30-31
3 1
CHEMICAL FAMILIES
Chemical properties of alkali metals.
By the end of the lesson, the learner should be able to:
To describe reaction of alkali metals with water.
Q/A: Review reaction of metals with water.
Writing down chemical equations for the reactions.
Deduce and discuss the order of reactivity down the group.
text book
K.L.B. BOOK IIP. 32
3 2
CHEMICAL FAMILIES
Chemical properties of alkali metals.
By the end of the lesson, the learner should be able to:
To describe reaction of alkali metals with water.
Q/A: Review reaction of metals with water.
Writing down chemical equations for the reactions.
Deduce and discuss the order of reactivity down the group.
text book
K.L.B. BOOK IIP. 32
3 3-4
CHEMICAL FAMILIES
Reaction of alkali metals with chlorine gas.
By the end of the lesson, the learner should be able to:
To write balanced equations for reaction of alkali metals with chlorine gas.
Teacher demonstration- reaction of sodium with chlorine in a fume chamber.
Q/A: Students to predict a similar reaction between potassium and chlorine.
Word and balanced chemical equations for various reactions.
Sodium, chlorine.
K.L.B. BOOK IIP. 33
4 1
CHEMICAL FAMILIES
Compounds of alkali metals.
By the end of the lesson, the learner should be able to:
Write chemical formulae for compounds of alkali metals.
Explain formation of hydroxides, oxides and chlorides of alkali metals.
Exercise: Completing a table of hydroxides, oxides and chlorides of alkali metals.
Discuss combination of ions of alkali metals with anions.
text book
K.L.B. BOOK II pp 33
4 2
CHEMICAL FAMILIES
Uses of alkali metals.
By the end of the lesson, the learner should be able to:
State uses of alkali metals.
Descriptive approach: Teacher elucidates uses of alkali metals.
text book
K.L.B. BOOK II pp 34
4 3-4
CHEMICAL FAMILIES
Uses of alkali metals.
Alkaline Earth metals Atomic and ionic radii of alkaline earth metals.
By the end of the lesson, the learner should be able to:
State uses of alkali metals.
Identify alkaline earth metals.

State changes in atomic and ionic radii of alkaline earth metals.
Descriptive approach: Teacher elucidates uses of alkali metals.
Q/A: Elements of group I and their electron configuration.
Examine a table of elements, their symbols and atomic & ionic radii.
Make deductions from the table.
text book
Some alkaline earth metals.
K.L.B. BOOK II pp 34
5 1
CHEMICAL FAMILIES
Physical properties of alkaline earth metals.
By the end of the lesson, the learner should be able to:
State and explain trends in physical properties of alkaline earth metals.
Examine a table showing comparative physical properties of Be, Mg, Ca.
Q/A: Teacher asks probing questions as students refer to the table for answers.
Detailed discussion of physical properties of alkaline earth metals.
Some alkaline earth metals.
K.L.B. BOOK II P. 35
5 2
CHEMICAL FAMILIES
Physical properties of alkaline earth metals.
By the end of the lesson, the learner should be able to:
State and explain trends in physical properties of alkaline earth metals.
Examine a table showing comparative physical properties of Be, Mg, Ca.
Q/A: Teacher asks probing questions as students refer to the table for answers.
Detailed discussion of physical properties of alkaline earth metals.
Some alkaline earth metals.
K.L.B. BOOK II P. 35
5 3-4
CHEMICAL FAMILIES
Electrical properties of alkaline earth metals.
By the end of the lesson, the learner should be able to:
To describe electrical properties of alkaline earth metals.
Teacher demonstration: -
To show alkaline metals are good conductors of electric charge.
Alkaline earth metals.
K.L.B. BOOK IIP. 37
6 1
CHEMICAL FAMILIES
Chemical properties of alkaline earth metals. Reaction of alkaline earth metals with oxygen.
By the end of the lesson, the learner should be able to:
To describe reaction of alkaline earth metals with oxygen
Q/A: Review reactions of Mg, Ca, with oxygen.
The corresponding word and then chemical equations are then written and their correctness verified by the teacher.
text book
K.L.B. BOOK IIP. 38
6 2
CHEMICAL FAMILIES
Chemical properties of alkaline earth metals. Reaction of alkaline earth metals with water.
By the end of the lesson, the learner should be able to:
To describe reaction of alkaline earth metals with water.
Q/A: Review reaction of metals with water.
Writing down word and balanced chemical equations for the reactions.
Deduce and discuss the order of reactivity down the group.
Some alkaline earth metals.
K.L.B. BOOK IIP. 39
6 3-4
CHEMICAL FAMILIES
Chemical properties of alkaline earth metals. Reaction of alkaline earth metals with water.
Reaction of alkaline earth metals with chlorine gas.
By the end of the lesson, the learner should be able to:
To describe reaction of alkaline earth metals with water.
To write balanced equations for reaction of alkaline earth metals with chlorine gas.
Q/A: Review reaction of metals with water.
Writing down word and balanced chemical equations for the reactions.
Deduce and discuss the order of reactivity down the group.

Teacher demonstration- Reaction of sodium with chlorine in a fume chamber.
Q/A: Students to predict a similar reaction between potassium and chlorine.
Word and balanced chemical equations for various reactions.
Supervised practice.
Some alkaline earth metals.

Sodium, chlorine.
K.L.B. BOOK IIP. 39
K.L.B. BOOK II P. 41
7

Midterm Examinations

8 1
CHEMICAL FAMILIES
Reaction of alkaline earth metals with dilute acids.
By the end of the lesson, the learner should be able to:
To write balanced equations for reactions of alkaline earth metals with dilute acids.
Changing word to chemical equations.
Supervised practice.
revision book
K.L.B. BOOK II PP. 43
8 2
CHEMICAL FAMILIES
Reaction of alkaline earth metals with dilute acids.
By the end of the lesson, the learner should be able to:
To write balanced equations for reactions of alkaline earth metals with dilute acids.
Changing word to chemical equations.
Supervised practice.
revision book
K.L.B. BOOK II PP. 43
8 3-4
CHEMICAL FAMILIES
Chemical formulae of alkaline earth metals.
Uses of some alkaline earth metals and their compounds.
By the end of the lesson, the learner should be able to:
Write chemical formulae for compounds of alkaline earth metals.
Explain formation of hydroxides, oxides and chlorides of alkaline earth metals.
State uses of alkaline earth metals.
Exercise: Completing a table of hydroxides, oxides and chlorides of alkaline earth metals.
Discuss combination of ions of alkaline earth metals with anions.

Descriptive approach: Teacher elucidates uses of alkaline earth metals.
text book
K.L.B. BOOK II PP. 45-47
K.L.B. BOOK II PP. 45-47
9

Midterm Break

10 1
CHEMICAL FAMILIES
Halogens. Physical properties of halogens.
By the end of the lesson, the learner should be able to:
Identify halogens in the periodic table.
Give examples of halogens.
Identify physical states of halogens.
Teacher demonstration: - To examine electrical properties of iodine, solubility in water of chlorine.
Iodine crystals, electrical wire, a bulb.
KLB BK II
P. 47
10 2
CHEMICAL FAMILIES
Comparative physical properties of halogens.
By the end of the lesson, the learner should be able to:
To state and explain the trends in physical properties of halogens.
Examine a comparative table of physical properties of halogens.
Discuss the deductions made from the table.
text book
K.L.B. BOOK II P. 47
10 3-4
CHEMICAL FAMILIES
Chemical properties of halogens.
Equations of reaction of halogens with metals.
By the end of the lesson, the learner should be able to:
To describe laboratory preparation of chlorine gas.

To describe reaction of halogens with metals.
To write balanced chemical equations of reactions involving halogens.
Teacher demonstration: - preparation of chlorine gas.
Reaction of chlorine and iron wool.
Reaction of bromine and iron wool.
Reaction of iodine and iron wool.
Observe the rate of these reactions; hence deduce order of their reactivity of halogens.

Re-write word equations as chemical equations then balance them.
Supervised practice.
Chlorine, iron wool, bromine.
text book
K.L.B. BOOK IIPP. 48-50
K.L.B. BOOK II P. 50
11 1
CHEMICAL FAMILIES
Reaction of halogens with water.
By the end of the lesson, the learner should be able to:
To describe reaction of halogens with water and the results obtained.
Bubbling chlorine gas through water.
Carry out litmus test for the water.
Explain the observations.
Chlorine gas, litmus papers.
K.L.B. BOOK II P. 51
11 2
CHEMICAL FAMILIES
Reaction of halogens with water.
By the end of the lesson, the learner should be able to:
To describe reaction of halogens with water and the results obtained.
Bubbling chlorine gas through water.
Carry out litmus test for the water.
Explain the observations.
Chlorine gas, litmus papers.
K.L.B. BOOK II P. 51
11 3
CHEMICAL FAMILIES
Some uses of halogens and their compounds.
By the end of the lesson, the learner should be able to:
To state uses of halogens and their compounds.
Teacher elucidates uses of halogens and their compounds.
text book
K.L.B. BOOK II pp 52
11 3-4
CHEMICAL FAMILIES
Some uses of halogens and their compounds.
Noble Gases. Comparative physical properties of noble gases.
By the end of the lesson, the learner should be able to:
To state uses of halogens and their compounds.
To describe physical properties of noble gases.
To explain physical properties of noble gases.
Teacher elucidates uses of halogens and their compounds.
Make A comparative analysis of tabulated physical properties of noble gases.
text book
K.L.B. BOOK II pp 52
  K.L.B. BOOK IIPP. 52-53
12 1
CHEMICAL FAMILIES
STRUCTURE & BONDING
Uses of noble gases.
Chemical bonds. Ionic bond.
By the end of the lesson, the learner should be able to:
State uses of noble gases.
Teacher elucidates uses of noble gases.
text book
K.L.B. BOOK IIP. 54
12 2
STRUCTURE & BONDING
Ionic bond representation.
By the end of the lesson, the learner should be able to:
Use dot and cross diagrams to represent ionic bonding.
Drawing diagrams of ionic bonds.
Chart- dot and cross diagrams.
Models for bonding.
K.L.B. BOOK II P. 58
12 3-4
STRUCTURE & BONDING
Grant ionic structures.
Physical properties of ionic compounds.
Covalent bond.
By the end of the lesson, the learner should be able to:
Describe the crystalline ionic compound.
Give examples of ionic substances.
Explain the formation of covalent bond
Use dot and cross diagrams to represent covalent bond.
Discuss the group ionic structures of NaCl.
Teacher gives examples of other ionic substances: KNO3, potassium bromide, Ca (NO3)2, sodium iodide.
Exposition: Shared pair of electrons in a hydrogen molecule, H2O, NH3, Cl2, and CO2.
Drawing of dot-and-cross diagrams of covalent bonds.
Giant sodium chloride model.
text book
K.L.B. BOOK II PP 56-58
K.L.B. BOOK II PP 60-63
13 1
STRUCTURE & BONDING
Co-ordinate bond.
Molecular structure.
By the end of the lesson, the learner should be able to:
To describe the co-ordinate bond
To represent co-ordinate bond diagrammatically.
Exposition- teacher explains the nature of co-ordinate bond.
Students represent co-ordinate bond diagrammatically.
text book
K.L.B. BOOK II P 65
13 2
STRUCTURE & BONDING
Trend in physical properties of molecular structures.
By the end of the lesson, the learner should be able to:
To describe van- der -waals forces.
To explain the trend in physical properties of molecular structures.
Discuss comparative physical properties of substances. exhibiting molecular structure.
Explain variation in the physical properties.
Sugar, naphthalene, iodine rhombic sulphur.
K.L.B. BOOK IIP 65
13 3-4
STRUCTURE & BONDING
Giant atomic structure in diamond.
Giant atomic structure in graphite.
Metallic bond. Uses of some metals.
By the end of the lesson, the learner should be able to:
To describe giant atomic structure in diamond.
To state uses of diamond.
To describe mutual electronic forces between electrons and nuclei.
To describe metallic bond.
To compare physical properties of metals.
To state uses of some metals.
Diagrammatic representation of diamond.
Discuss uses of diamond.
Discussion:
Detailed analysis of comparative physical properties of metals and their uses.



Probing questions & brief explanations.
Diagrams in textbooks.
text book
K.L.B. BOOK II P 69
K.L.B. BOOK IIP 70
14

End Term and Closing

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