Chemistry Kenya
Structure and Bonding
Structure and Bonding
Structure and Bonding
The role of outer electrons in chemical bonding
Significance of the outer electrons in chemical bonding.
The noble gas electron arrangement
Electron transfer and ionic bonding
Electron sharing and covalent bonding
Use dot(.) and cross (x) diagrams to illustrate bonding, electrostatic forces of attraction in the following: molecular (iodine), giant covalent( diamond, graphite and silicon (IV) oxide), giant ionic (sodium chloride) and giant metallic (copper)
Other types of bonds: coordinate, hydrogen bond, Van der waals forces of attraction (simple explanation only)
The influence of hydrogen bonds and Van der waals forces on physical properties (melting point, boiling point, solubility, electrical and thermal conductivity)
Types of bonds across a period (period 3)
Changes in types of chemical bonds in oxides and chlorides of sodium, magnesium, aluminium, silicon, phosphorus, Sulphur and chlorine. NOTE: Use of models to illustrate bonding should be encouraged.
Applications: Selection of materials for various uses; e.g. diamond, graphite and aluminium
Listening to this topic
