질문 7 Calculate the linear packing factor (LPF) of a <100> type direction of the face-centered cubic (FCC) crystal structure. 1점 Answer Format: X.XX Hopefully you realize that LPF must be less than or equal to 1. PPF and APF are definitely less than 1. 1 *FE (but without graphics and hints). This is a challenging question. Here is a picture of a full-sphere physical model of the diamond cubic crystal, looking down a <110> axis: The reduced-sphere depiction of the diamond cubic (DC) unit cell is provided below. Note that bonds within the cube are colored to highlight the tetrahedral coordination associated with sp³ bonding. The dotted lines merely show the cubic symmetry that this packing scheme also features, but these are not indicating covalent bonds. The reduced-sphere depiction of the diamond cubic (DC) unit cell is provided below. Note that bonds within the cube are colored to highlight the tetrahedral coordination associated with sp³ bonding. The dotted lines merely show the cubic symmetry that this packing scheme also features, but these are not indicating covalent bonds. ☑ The radius of atoms that pack in DC fashion are related to the lattice parameter by the relation: 8R a √√3 Compute the atomic packing factor (APF) of diamond cubic. Answer Format X.XX 0.74