Ans to Ch 8.4 practice questions

 

27. not conclusively, because ionic solids also conduct electricity

when melted

28. malleability; no, because metals are malleable

29. nickel, because nickel is a metal and metals are good conductors

of electricity; ductility, malleability, metallic luster, very

high boiling point

30. an interstitial alloy

31. a substitutional alloy