Right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are:

1 2021 The Solid StateClose Packed Structures – Voids Medium
Right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are:
A 6, 12
B 2, 1
C 12, 6
D 8, 4

Detailed Solution

Number of atoms in a hexagonal primitive (hcp) unit cell = 6 Number of tetrahedral voids = 2 × number of atoms = 12 Number of octahedral voids = number of atoms = 6

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