The position of three elements A, B and C in the Periodic Table are shown below– Group 16 Group 17 , – – ,– A , – – , B C (a) State whether A is a metal or non-metal. (b) State whether C is more reactive or less reactive than A. (c) Will C be larger or smaller in size than B? (d) Which type of ion, cation or anion, will be formed by element A?