A cubic unit cell has one atom on each corner and one atom on each body diagonal. The number of atoms in the unit cell is

Answer

6

Explanation

Contribution by atoms on the corners
` 8 xx 1/8 1=1 ` . As atoms on the body daigonals are not shared by any other unit cell and there are four body diagonals, their contrivbutio = 4, Hence total atoms in the unit cell = 5 .