Density is a weight per unit volume calculation.
There could be different alloys or casting methods with subtle differences in density, or temperature variations in expansion and density. However:
Every cubic centimeter of lead weighs 11.34 grams.
Every cubic centimeter of iron weighs 7.86 grams.
Thus, the density of lead (11.34 g/cc) is greater than iron (7.86 g/cc).
This is independent of the actual weight and volume of the sample.
An alloy of iron and lead.
Iron is magnetic, lead is not.
Providing of course that a sample is representative of the population from which it is drawn, the bigger it is the more likely it will be to lead to a valid conclusion. Therefore, the best sample size when there are no restrictions, as in this case, would be one of 1000.
Lead is more dense than feathers. It doesn't matter how much you have of either one. A chip of lead is more dense than a 10-mile convoy of trucks loaded with feathers.
China?
Lead is denser than iron.
Lead is denser than iron.
Lead oxide
Lead brick
This is incorrect. A bar of lead is denser than a bar of iron. Iron bars have a density of 7.87 g/cm3, whereas lead bars have a density of 11.36 g/cm3.
Lead is denser.
Lead will always have the greater density compared to aluminium. The weight only influences the volume in question. 10kg of Al will be much more(bigger in size) than 5kg of lead.
1.6 volume of iron
The first reference I consulted on line lists the density of gold as 19.32 gm/cm3,whereas the density of your sample is 19.286 gm/cm3.
Lead is heavier than iron.
Lead is the denser element
Lead is heavier, but iron is stronger.