1.a) State THREE (3) types of primary interatomic bonding and TWO (2) types of secondary bonding. (2 Marks) 1.b) Explain why metallically bonded materials are generally have high electrical conductivity than ionically or covalently bonded ones. (4 Marks) 1.b) Calculate the radius of a vanadium atom, given that vanadium has a BCC crystal structure, a density of 5.96 g/cm³, and an atomic weight of 50.9 g/mol. Figure Q2: BCC Crystal Structure