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Aluminium metal has face centred cubic (...

Aluminium metal has face centred cubic (f.c.c) structure. The number of 'Al' atoms per unit cell of the lattice is

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

In fcc atoms are present at faces and corners. Number of atoms in fcc = atoms at corners + atoms at faces of unit cell = (Number of corners `xx` contribution by one atom)
`= (8xx(1)/(8))+ (6xx(1)/(2))= 1 +3=4 `
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