The coordination number of each atom in body centered cubic unit cell is

Options

A. (0,0,0) and (1/2,0,0)
B. (0,0,0) and (1/2,1/2, 1/2)
C. (0,0,0) and (0,1/2,0)
D. (0,0,0) and (0,0,1/2)

Answer

B

Explanation

`Z = 8 xx 1/3 + 1xx 1 = 2`
consider one particle at origin and second one at body centre (0,0,0) ,(1/2,1/2,1/2)