Question # The ratio of number of closed packed atoms to the number of tetrahedral holes in cubic closed

# The ratio of number of closed packed atoms to the number of tetrahedral holes in cubic closed

packing is

(1) 1: 1

(2) 1: 2

(3) 1: 3

(4) 2: 1

Solution

In CCP, No of atoms = 4 } Ratio = 4 : 8 = 1 : 2

No. of Tetra voids = 8