190> 3.Electronegativity The more electropositive one element and the more electronegative the other,the greater is the likehood that they will form an intermetallic compound instead of a substitutional solid solution. 4.Valences Other factors being equal,a metal will have more of a tendency to dissolve another metal of higher valency than one of a lower valency.SINO-ITALIAN CAMPUS 3. Electronegativity The more electropositive one element and the more electronegative the other, the greater is the likehood that they will form an intermetallic compound instead of a substitutional solid solution. 4. Valences Other factors being equal, a metal will have more of a tendency to dissolve another metal of higher valency than one of a lower valency