Question

The ratio of close packed atoms to tetrahedral holes in cubic packing is
a) 1:1
b) 1:2
c) 2:1
d) 1:3

Answer 1

hey ,,b).1:2 is the answer

Answer 2

The answer will be 1: 2 here if the close-packed atom is taken up as the 1 then the tetrahedral holes will fall up to 2.

These types of holes are usually formed when the single atom will get in touch with 3 atoms that are in the below layer.