Question 6 (d) The position of three elements A, B and C in the periodic table are shown below – Group 16Group 17−−−A−−BC Which type of ion, cation or anion, will be formed by element A?
Elements with configuration 2, 8, 2 and 2, 7 are placed in Modern Periodic Table write the position in Modern Periodic table and identify their valencies and write the formula of compound formed by their combination