Question

simple cubic unit cell is formed if the second layer is laid on tetrahedral voids true or false​

Answer 1

Answer:

eight tetrahedral voids

There are a total of four cube diagonals in one unit cell. Thus, overall, there are eight tetrahedral voids in a FCC structure.

Explanation:

Tetrahedral voids are formed when the triangular voids in the second layer lie above the triangular voids in the first layer and the triangular voids in the first layer and the triangular shapes of these voids do not overlap

D

Octahedral voids are formed when the triangular voids in the second layer exactly overlap with similar voids in the first layer.

Tetrahedral voids are formed when the triangular void in the second layer lie exactly above the triangular voids in the first layer and the triangular shape of these voids oppositely overlap.