SEARCH Articles Figures Tables Element oxidation number Elements reactivity Group 12 reactivity Group 14 elements reactivities Group 2 elements oxides Group number Group numbering Group oxidation number Group oxides Group reactivity of elements Main elements Main group Main group oxides Main-group elements Oxidation Number Oxidizer Oxidation elements Oxides elemental Oxides of Group 1 elements Oxidizing group Reactive groups Reactive oxidants Reactivity number Reactivity of elements Reactivity of groups