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COMEDK · Chemistry · 16. Solid State

How many atoms are present in hcp per unit cell?

  1. A 4
  2. B 2
  3. C 1
  4. D 6
Verified Solution

Answer & Solution

Correct Answer

(D) 6

Step-by-step Solution

Detailed explanation

In a hexagonal close packing (hcp) unit cell, the number of atoms is calculated by summing the contributions from atoms at different positions. The unit cell has 12 atoms at the corners of the hexagonal faces, each contributing \(\dfrac{1}{6}\) to the unit cell. Thus, the…