The correct statement about metals and nonmetals is:
Metals can be hammered into thin sheets, and nonmetals are brittle.
Most metals are malleable (can be hammered into thin sheets) and ductile, while nonmetals tend to be more brittle when in solid form. The other statements provided are incorrect. For example, most nonmetals are gases or solids at room temperature (not primarily liquids), metals are generally good conductors of electricity, and both metals and nonmetals can be found in various columns of the periodic table, but metals and nonmetals are typically found in different areas.