Topic: Material Science
The structure which has the highest packing of atoms
- A. Hexagonal close packed lattice
- B. Body centered cubic lattice
- C. Face centered cubic lattice
- D. Both (a) & (c)
Answer: D. Both (a) & (c)
Explanation: The Atomic Packing Factor (APF) is highest for both Hexagonal Close Packed (HCP) and Face Centered Cubic (FCC) lattices. For both HCP and FCC structures, the APF is 0.74, whereas for Body Centered Cubic (BCC) it is 0.68 and for Simple Cubic (SC) it is 0.52.