Nickel has a fcc crystal structure, an atomic radius of 0.1246 nm, an electronegativity of 1.8 and a valence of +2. Silver has a fcc crystal structure, an atomic radius of 0.1445 nm, an electronegativity of 1.9, and a valence of +1. Do you expect nickel and silver to form: . a. An interstitial solid solution.
b. A substitutional solid solution with complete solid solubility.
c. A substitutional solid solution with incomplete solid solubility.