Question

The edge length of a face centred unit cubic cell is 508 p.M. If the radius of cation is 1:10 p.M. The radius of anion will be

Answer 1

the unit cell for the simple cubic structure contain one-eighth proportion of eight corner atom.to make one complete atom molecule or ion in each unit cell .Given the radius of the atom or ion the edge length is just edge length. (a)=2r where r is the radius if the atom or ion .