For the closest packing of atoms A (radius, r_(A) ), the maximum radius of atom B that can be fitted into octahedral void is
In closest packing of A type of atoms (radius r_(A) ) the radius of atom B that can be fitted into octabedral voids is
In ccp, ratio of no. of atoms to no. of tetrahedral void is -
In the closest packing of atoms Note : OV stands for Octahedral voids and TV stands for Tetrahedral voids.
A unit cell is obtained by closed packing layers of atoms in ABAB …… pattern. The total number of tetrahedral and octahedral voids in the unit cell are respectively