ChemistryMedium42×since 2002Q1938An element crystallises in a face-centred cubic (fcc) unit cell with cell edge aaa. The distance between the centres of two nearest octahedral voids in the crystal lattice is :AaaaBa2{a \over 2}2aCa2{a \over {\sqrt 2 }}2aD2a{\sqrt 2 a}2aCheck answerSkip