AlFe3 structure exhibits cubic space group 225 (see page 2). Al is in 4a, and Fe is in 4band 8c positions.(a) List all the basis positions and what is the Bravais Lattice.(b) Draw the 3-D unit cell and label all elements. (c) The density of AlFe3 is 6.69 g/cm3 at room temperature. Calculate the lattice constant, a, for AlFe3.(d) Is the structure centric? Why or why not?(e) Determine the AlFe3 structure factor (Fhkl).(f) For the first 3 hkl reflections you would observe in XRD, what are the values of F (leave your answers in terms of the atomic scattering factors)?(g) Without calculating the XRD intensities, and based on your answer in (f), how would you rank the XRD intensities for the 3 hkl reflections (from highest to lowest). Explain how you determined your answer.(h) Calculate the XRD intensities for your lowest and highest hkl reflections with =1.54 Ã…. Assume AlFe3 exhibits randomly orientated grains with minimal crystal imperfection. Do your calculations agree or disagree with your answer in (g)?