Only those atoms which form four covalent bonds produce a repetitive three dimensional structure using only covalent bonds, e.g., diamond structure. The latter is based on an fcc lattice where four out of the eight tetrahedral holes are occupied by carbon atoms. Every atom in this structure is surrounded tetrahedrally by four others. Germanium, silicon and grey tin also crystallize in the same way as diamond ("Given " sin 54^(@) 44'=0.8164) Total number of effective atoms in a cube is

Only those atoms which form four covalent bonds produce a repetitive t

1.	Only those atoms which form four covalent bonds produce a repetitive three dimensional structure using only covalent bonds, e.g., diamond structure. The latter is based on an fcc lattice where four out of the eight tetrahedral holes are occupied by carbon atoms. Every atom in this structure is surrounded tetrahedrally by four others. Germanium, silicon and grey tin also crystallize in the same way as diamond ("Given " sin 54^(@) 44'=0.8164) Total number of effective atoms in a cube is
Answer» 1 2 4 8 Solution :Total atoms at CCP = 4 Total atoms at TETRAHEDRAL VOIDS = 4.