A solid A B has the NaCl structure. If radius of cation A⁺ is 120 pm , the maximum possible value of the radius of the anion B⁻ is

Step-by-step solution

For NaCl crystal, Radius of cation/radius of anion =0.414 aligned & r_ A⁺ r_ B⁻ =0.414 & r_ B⁻ = r_ A⁺ 0.414 = 120 0.414 & =290 pm & aligned