Gold is the heaviest metal among these options, with a density of 19.3 g/cm3. Silver has a density of 10.5 g/cm3, copper is 8.96 g/cm3, and aluminium is the lightest at 2.7 g/cm3. Gold is nearly twice as dense as silver and significantly heavier than the other metals listed. This high density is why gold feels so heavy for its size compared to other common metals.