Question

$C{l}^{-}$ atom at the corner of its unit cell is equally shared by ___________ number of such unit cell.

• A. $4$
• B. $8$
• C. $6$
• D. none of these

Answer 1

Answer: (B)

$8$

$C{l}^{-}$ atom at the corner of its unit cell is equally shared by $8$ number of such unit cells.

Note: In a unit cell, an atom/ion at corner is shared by eight unit cells. An atom/ion at face center is shared by two unit cells. An atom/ion at body centre is shared by one unit cell. An atom/ion at edge center is shared by four unit cells.