Astatine (At) and tennessine (Ts) are the heaviest elements in the same vertical column of the periodic table as fluorine, chlorine, bromine, and iodine. These elements are collectively referred to as the halogens.
State the group number of the periodic table in which the halogens are found.
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.