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Lead (II) sulphide crystal has NaCl structure. What is the distance between $Pb^{2+}$ and $S^{2−}$ in PbS if its density is 12.7 $g cm^{−3}$? (At. mass of Pb = 207).

1 Answer

250pm
Hence (B) is the correct answer.
answered Jun 2, 2014 by sreemathi.v
 

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