Question

which of these is a property of a metallic solid?
dull luster
held together only with intermolecular forces
malleable
low melting and boiling points

Explanation:

Metallic solids have metallic bonding (a sea of delocalized electrons), giving them properties like malleability (ability to be shaped without breaking). Dull luster is non-metallic; they use metallic bonding not just intermolecular forces; and have high melting/boiling points.

Answer:

malleable