Fluorine, chlorine, and bromine are in Group 7 of the periodic table.
State, in terms of the electrons in their atoms, what the atoms of fluorine, chlorine, and bromine have in common.
106 exam-style questions on Edexcel GCSE Chemistry 7.2 Group 7, covering 7.2.1 Physical properties of the halogens, 7.2.2 Reactions of the halogens, 7.2.3 Relative reactivity and displacement reactions of the halogens, and 7.2.4 Halogen displacement as a redox reaction. Each one has a worked solution and a mark scheme showing where the marks go.