A compound forms hexagonal close-packed structure. What is the total number of voids in 0.5 mol of it? How many of these are tetrahedral voids?
Number of close-packed particles = 0.five x 6.022 x 10 23 = 3.011 x 10 23 Therefore, range of octahedral voids = 3.011 x 10 23 And, range of tetrahedral voids = 2 x 3.011 x 10 23 = 6.022 x 10 23 Therefore, overall quantity of voids = 3.011 x 10 23 6.022 x 10 23 = 9.033 x 10 23
