please solve

i) Determine which types of bonds are present in each of the following materials: (5) - Solid Pt - Gaseous H2 - Solid Cr2O3 - Solid Ar - Solid Si ii) Describe the origin and nature of the attractive and repulsive forces in ionic bonds and fluctuating induced dipole bonds. (5) iii) What are the differences between covalent bonds and metallic bonds? (5) iv) Determine the electron configurations for the elements Co(Z=27) and Zn(Z=30). Do you expect these elements to be magnetic or not magnetic? Why or why not