In the sodium chloride structure each `Na_(o+)` ion is surrounded by six `Cl^(ɵ)` ions nearest neighbours and ……….. `Na^(o+)` ions next nearest neighbours.

Fill in the blanks by choosing the appropriate word from those given in the brackets. (isotropic, anisotropic, 0.255–0.414, 0.414–0.732, unit cell AB AB, .... ABC ABC ..., ...., 52.4, 60.4, F-centres, V-centres, 4, 2, hexagonal close packing, square close packing, 6, 8 glass, plastics, lead zirconate, barium titanate) In the sodium chloride structure each Na+ ion is surrounded by six Cl^(-) ions nearest neighbours and ..... Na^(+) ions next nearest neighbours.

In a sodium chloride crystal, each chloride ion is surrounded by

In NaCl crystal, one Na^+ ion is surrounded by_____ Cl^- ions.

In the crystal CsCl, the nearest neighbours of each Cs ion are

In NaCl ionic crystal, each Na^(+) ion is surrounded by __________ Cl^(-) ions and cach Cl^(-) ion is surrounded by __________ Na^(+) ions.