In a solid ‘ A B ’ having the N a C l structure, ‘ A ’ atoms occupy the corners of the cubic unit cell. If all the face centered atoms along one of the axes are removed, then the resultant stoichiometry of the solid is:

Question

In a solid ‘ A B ’ having the N a C l structure, ‘ A ’ atoms occupy the corners of the cubic unit cell. If all the face centered atoms along one of the axes are removed, then the resultant stoichiometry of the solid is:, A B 2, A 2 B, A 4 B 3, A 3 B 4

MARKS App · Accepted Answer

A = 1 8 × 8 corner + 1 2 × 4 faces = 3 B = 1 centre + 1 4 × 12 edge = 4 A 3 B 4

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