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MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic ChemistrySolid statePrevious Year Questions

A given metal crystallises out with a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit cell, What is the radius of one atom? (AIPMT 2015)

A.40 pm
B.127 pm✓ Correct
C.80 pm
D.108 pm
Explanation

Given, edge length = 361 pm Four metal atoms in one unit cell i.e., effective number in unit cell (Z) = 4 (given) SOLID STATE 31 It is a FCC structure, Face diagonal = 4r 2a 4r 2 361 r 127pm 4 x >>

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