Which statement best describes a common property of metals?

• A. They are brittle Solids
• B. They conduct electricity
• C. They exist only as gases at room temperature
• D. They are insulators

Answer: (B)

Metals conduct electricity because their atoms form a lattice with a sea of delocalized electrons that are not bound to any one atom. These free electrons can move easily when a voltage is applied, carrying electric charge through the metal quickly. This explains why metal is used for wires and electrical components. Other statements don’t fit as broadly: metals aren’t typically brittle solids (they’re usually malleable and ductile), they aren’t gases at room temperature (most are solid, with some exceptions like mercury), and they are not insulators. The ability to conduct electricity is a defining property that metals share.