In a solid 'AB' having the NaCl 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 resulting stoichiometry of solid is ---
A. AB2
B. A2B
C. A4B3
D. A3B4
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1 Answers
Avik
·2010-02-27 07:16:49
Fr NaCl struct., Formula shud've been - A4B4.
Atoms along one axes are removed matlab, frm 2 opp. faces, 2 lattice points are removed => 1/2*2 = 1 "A" atom removed.
Hence, resulting formula - A3B4 ----D).