Question

Germanium has a lattice constant of 0.565 nm.   

a) Draw the portion of the (110) plane that resides inside a cubic unit cell flat on the page. Label the lengths of the edges. Show the arrangement of atoms whose centers lie on the plane and label the distances between the centers of the nearest neighbor atoms on the plane. Determine the value of the atomic radius.

b) Calculate the planar atomic density of atoms on the (110) plane in atoms/cm2.

c) Draw the portion of the (111) plane that resides inside a cubic unit cell flat on the page. Label the length of the edges. Show the arrangement of atoms whose centers lie on the plane.

d) Calculate the planar atomic density of atoms on the (111) plane in atoms/cm2.

Answer 1