Question

Metallic gold has a face center cubic unit cell.how many AU atoms are in each unit cell?​

Answer 1

For all unit cells except hexagonal, atoms on the faces contribute 12 atom to each unit cell, atoms on the edges contribute 14 atom to each unit cell, and atoms on the corners contribute 18 atom to each unit cell. Metallic gold has a face-centered cubic unit cell

hope it helps plz mark brainliest

Answer 2

Answer:

A face-centered cubic unit cell has eight atoms at the corners of the cube and six atoms on the faces. Because atoms on a face are shared by two unit cells, each counts as  1/2  atom per unit cell, giving 6×( 1/2) =3 Au atoms per unit cell. Atoms on a corner are shared by eight unit cells and hence contribute only  1/8  atom per unit cell, giving 8× (1/8)  =1 Au atom per unit cell. The total number of Au atoms in each unit cell is thus 3 + 1 = 4.Explanation: