1)Metal A has a cubic structure with ao = 0.4465 nm and a density of 3.735 g/cm. And a different metal B has a different cubic structure, with ao = 0.3163nm and a density of 3.63 g/cm. The atomic weight of manganese is 27.2 g/mol and the atomic radius is 0.0995nm. Determine a) The percent volume change that would occur if A transforms to B. b) Use calculation to compare the packing factor between the two metals