The Variable Oxidation States of Transition Metal (d Block) Elements (A2 Chemistry)

This video aimed at A-level students, recaps how to work out the oxidation numbers of transition metal elements when combined in compounds and ions. It also explains that a key chemical property of transition metals is their ability to exhibit variable oxidation states and explains the reasons for this. Finally, it lists the stable oxidation states that exist for transition metal elements, focussing on chromium, manganese, iron, cobalt and copper.