Page 302 - SUBSEC October 2017_Neat

UNIT 1
MODULE 3: CHEMISTRY OF THE ELEMENTS (cont’d)

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES

First Row Transition Elements cont’d

Students should be able to:

5.3. discuss qualitatively the Melting point, density,
properties of transition atomic radius, ionic radius,
elements when compared first ionisation energy and
to those of calcium as a conductivity.
typical s-block element;
1.1
5.4. 1.2 determine the electronic Mention changes in
configuration of the first oxidation number.
row transition elements
and of their ions;

5.5. 1.1 explain the relatively small
changes in atomic radii,
ionic radii and ionisation
energies of the elements
across the period;

5.6. 1.1 explain the formation of d-orbital separation
coloured ions by transition of energy in octahedral
elements; complexes.

5.7. 1.16 describe the variation in Refer to E values. Perform experiments to
θ
oxidation states of include the use of an
vanadium; acidified solution of
ammonium vanadate (V)
and granulated zinc.

5.8. predict the shapes of Octahedral, tetrahedral and
complexes of transition square planar.
elements;

5.9. discuss the use of: Refer to Module 1, Specific
Fe 3+ (aq)/Fe 2+ (aq), Objective 4.4.
MnO4(aq)/Mn 2+ (aq), and
2-
Cr2O7 (aq)/Cr 3+ (aq) as redox
systems; and,

5.10. explain the principle of Stability constants and the Perform experiments to
ligand exchange. CO/O2 haemoglobin and demonstrate ligand
NH3(aq)/Cu 2+ (aq) systems. exchange. Include
reactions involving Co 2+ (aq),
Cu 2+ (aq).

CXC A11/U2/17 33