Q2:A/ chose lor 2 1- Show that the Atomic packing factor for FCC is 0.74. 2- Determine Quantum numbers for each electron when n=2 B/I-Within a cubic unit cell, sketch the following: i)202 ii) (171) 2- What type(s) of bonding would be expected for each of the following materials: solid xenon, bronze and rubber? CI A cylindrical bar of aluminum 15 mm in diameter is to be deformed elastically in tension. A force of 19000 N. produces a reduction in specimen diameter of 3*10mm if its elastic modulus is 100 GPa. Draw the deformation situation and Compute Poisson's ratio for this material?(30 mark)