1dThe Periodic Table

Syllabus objectives

• 1.18understand how elements are arranged in the Periodic Table: • in order of atomic number • in groups and periods.
• 1.19understand how to deduce the electronic configurations of the first 20 elements from their positions in the Periodic Table
• 1.20understand how to use electrical conductivity and the acid-base character of oxides to classify elements as metals or non-metals
• 1.21identify an element as a metal or a non-metal according to its position in the Periodic Table
• 1.22understand how the electronic configuration of a main group element is related to its position in the Periodic Table
• 1.23understand why elements in the same group of the Periodic Table have similar chemical properties
• 1.24understand why the noble gases (Group 0) do not readily react