3.1 - The periodic table

3.1.1 - Describe the arrangement of elements in the periodic table in order of increasing atomic number. Names and symbols of the elements are given in the Chemistry Data Booklet. The history of the periodic table is not required.

3.1.2 Distinguish between the terms group and period. The numbering system for groups in the periodic table is shown in the data booklet. Students should also be aware of the position of the transition metals in the periodic table.

3.1.3 Deduce the relationship between the electron configuration of elements and their position in the periodic table.
Explanations are only required for the first 20 elements, although general principles can extend to the whole of the periodic table. For example, students should know or be able to predict that K is in group 1 using Z = 19, but need only know that since Cs is in group 1, it has one electron in its outer shell.