COMPOUNDS

Objectives

On completion of the unit you should be able to:

1. identify the elements in the periodic table which tend to combine to form ionic compounds.
2. define empirical formula.
3. write the simplest formula of ionic compounds, given the elements which combine to form the compound.
4. define "ionic bond".
5. explain why ionic compounds conduct electricity in liquid state, but not in solid state.
6. explain the high melting points of ionic compounds.
7. define and give examples of molecular compounds.
8. write the molecular formula, electron dot formula and structural formula for simple molecules.
9. explain the difference between polar and nonpolar bonds.
10. define electronegativity.
11. use electronegativity values to predict if a bond will be ionic polar covalent or nonpolar covalent.
12. predict whether simple molecules will be polar or nonpolar.
13. write the formulas of simple polyatomic ions.
14. write the formulas of compounds which contain polyatomic ions.
15. calculate the oxidation number of atoms in elements, compounds and polyatomic ions.

Back

Next