Q1 (30 points) Figure 1 shows the crystal structure of sodium chloride salt (NaCl). Let the effective radius of Na be 2.8 A and the effective radius of Cl be 3.8A i. (5 pts) Find the lattice constant of NaCl. ii. (5 pts) Determine the volume density of Na. iii. (5 pts) Determine the volume density of Cl. iv. (5 pts) Calculate the packing factor for Na. v. (5 pts) Calculate the packing factor for Cl. vi. (5 pts) Calculate the packing factor for both Na and Cl. -Na CI Pipe 1. Crystale of Na