A solid A B has NaCl type structure. The radius of A⁺ is 100 pm . What is the radius of B⁻ ?

Step-by-step solution

NaCl type structure is also called face centred cubic lattice. Here the radius ratio (r_c / r_a ) ranges from 0.414 to 0.732 . aligned Radius ratio = r_c r_a = & radius of cation radius of anion Radius of anion (B⁻ ) & = radius of A⁺ radius ratio & = 100 0.414 to 100 0.732 & =241.5 to 136.6 . aligned