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A compound formed by the elements X and Y has a cubic structure in which X atoms are at the corner of the cube and Y atoms are at the face centres. Calculate Zeff.

Option: 1


Option: 2


Option: 3


Option: 4


Answers (1)


We have:

Number of effective X atoms  \small =8\times \frac{1}{8}  per corner atom share

Thus, effective X atoms \small =1 atom/unit cell

Now, number of effective Y atoms \dpi{100} \small =6 corners \small \times \frac{1}{2}  per face atom share

Thus, effective Y atoms \small =3 atoms/unit cell

Hence, \small Z_{eff(8X+Y)}=1+3=4


Posted by

Deependra Verma

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