This picture shows the cubic unit cell for ZnS. Ho...

Question

This picture shows the cubic unit cell for ZnS. How many Zn2+ ions are in this cubic unit cell?How many S2- ions are in this cubic cell?

Jules Bruno · Accepted Answer

In a unit cell: atoms have different contribution depending on their location                                                  contributioncorner atoms                                 1/8atoms in center/fully inside          1atoms in face of the cube            1/2 [readmore]For Zn+:Zn+ is represented by the grey spheres. All the spheres are inside the cell Count total per cell:atoms in center/fully inside = 4# of Zn2+ = 4 per 1 unit cellFor S2-:S2- is represented by the yellow spheres.Count total per cell:corner atoms = 8face atoms = 6# of S2-=8×18+(6×12)# of S2-=1+3# of S2- = 4 per 1 unit cellThere are 4 ions of both S2- and Zn2+ of per 1 unit cell

Problem: This picture shows the cubic unit cell for ZnS. How many Zn2+ ions are in this cubic unit cell?How many S2- ions are in this cubic cell?

FREE Expert Solution

Problem Details

Problem: This picture shows the cubic unit cell for ZnS. How many Zn2+ ions are in this cubic unit cell?How many S2- ions are in this cubic cell?

FREE Expert Solution

Problem Details

Sign up for free to watch this video!