Problem VII.B |

Using Figure VII.B.2,

- Calculate the
number of spheres in an fcc unit
cell. Note
that corners are shared by 8 unit cells,
while faces are shared by 2 unit
cells.

**Answer: 4.** - Calculate the number of octahedral holes
per unit cell. Note that the
edges are shared by 4 unit cells.

**Answer: 4.** - Calculate the number of tetrahedral
holes per unit cell.

**Answer: 8.**