Schedule for Chemistry,
Monday, June 28, 2010 @ 4:43 PM
Scheme of Work: Sec 2 Chemistry (Semester 2)SEMESTER 2WEEK 1 / 6 Ionic Bonding and Ionic Compounds
• Recall and recap on formation of ions from atoms.
• Introduction to electrostatic forces of attraction between oppositely charged ions in an ionic bond.
• Formation of ionic bonds and ionic compounds (transfer of electrons from metals to non-metals)
• Drawing of ‘dot-and-cross’ diagrams for ionic compounds.
WEEK 1 / 6 Revision test on formula and equations
• Ionic compounds and their properties.
• Revision of drawing of ‘dot-and-cross’ diagrams for ionic compounds.
WEEK 2 / 7 Covalent Bonding and Covalent Compounds and Molecules
• Introduction to the sharing of electrons between atoms.
• Formation of covalent bonds and simple covalent compounds and elements.
• Drawing of ‘dot-and-cross’ diagrams for covalent compounds.
• Revision of drawing of ‘dot-and-cross’ diagrams for covalent compounds and elements.
WEEK 3 / 8 • Short test on ionic bonding and compound.
• Deduce the arrangement of electrons in other covalent molecules.
WEEK 4 / 9 Metallic Bonding
• Describe metals as a lattice of positive ions in a sea of mobile electrons.
• Relate the electrical conductivity of metals to the mobility of the electrons in the structure.
Relative Molecular Masses and Relative Atomic Masses
WEEK 5 / 10 • Short test on covalent bonding and compound.
Percentage purity and Percentage Composition by mass
REVISION WEEK • Revision of drawing of ‘dot-and-cross’ diagrams for ionic compounds.
WEEK 11 & 12 • Revision of drawing of ‘dot-and-cross’ diagrams for simple covalent molecules and compounds.
Labels: Chemistry Schedule