POS crystallizes in an orthorhombic (like a rectangular prism) crystal structure with unit-cell dimensions of 2.00 nm x 1.00 nm x 0.60 nm. You count 12 nitrogen atoms in the unit cell. What is the density of the crystalline region in g/cm? Choose from the choices below. O 0.43 x 10-22 g/cm O 0.43 g/cm O 1.28 g/cm O 5.12 g/cm O 9.98 g/cm Insufficient information