Which one of the following statements is not applicable to metallic solids?
a. The units that occupy the lattice points are positive ions.
b. The binding forces in metallic solids are shared electron pairs.
c. The melting points of metallic solids vary over a large range.
d. The hardness of metallic solids varies from quite soft to quite hard.
e. Metallic solids conduct electric current well.
Answer: B