How many atoms are there per unit cell in a body centred cubic lattice system ?
Correct answer: D. 2
- A. 6
- B. 5
- C. 3
- D. 2
Explanation
A body-centred cubic unit cell has eight corner atoms contributing 8 × 1/8 = 1 atom, plus one complete atom at the centre. Thus, the total is two atoms per unit cell.
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