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In primitive unit cubic cell, only _______ of an atom (or ion or molecule) belongs to a particular unit cell.(a) \(\frac{1}{4}\)th(b) \(\frac{1}{3}\)rd(c) \(\frac{1}{8}\)th(d) \(\frac{1}{2}\)ndThis question was posed to me in quiz.The origin of the question is Solid State in portion Solid State of Chemistry – Class 12

Answer»

Right CHOICE is (c) \(\frac{1}{8}\)th

Explanation: In primitive UNIT cubic cell, each atom at the corner is SHARED between 8 adjacent unit CELLS. Thus, only \(\frac{1}{8}\)th of an atom (or ion or MOLECULE) belongs to a particular unit cell.



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