SPM Form 4 Chemistry Chapter 4 – Periodic Table by Whatsapp Cikgu Kwee now! Revision Notes 4.1 The Periodic Table4.2 Group 18 Elements 4.3 Group 1 Elements4.4 Group 17 Elements4.5 The Periods and Transition Metals Videos The Group in Periodic TableThe Period in Periodic TableGroup 18 ElementsGroup 1 MetalReaction of Alkali Metals with Oxygen GasGroup 17 ElementsReactivity of Group 17 Elements Whatsapp Cikgu Kwee now!