In a face centred cubic lattice, the number of nearest neighbours for a given lattice point is :

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Solution

The correct option is C 12
Contents BCC CCP/FCC HCP
Type of packing but not close packing ABAB.......... close packing ABCABC.......... close packing ABAB
No. of atoms 2 4 6
Co-ordination no. 8 12 12
Packing efficiency 68% 74% 74%

Suggest Corrections

Contents	BCC	CCP/FCC	HCP
Type of packing but not close packing	ABAB.......... close packing	ABCABC.......... close packing	ABAB
No. of atoms	2	4	6
Co-ordination no.	8	12	12
Packing efficiency	68%	74%	74%