With a temperature of T = 293 K.
Lead: 11.3 103 kg m-3
Silver: 10.50 103 kg m-3
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They both weight a kilogram. Lead has a higher density.
Lead
Iron has a greater density.
Both 1 kg of feathers and 1 kg of lead have the same mass, which is 1 kilogram. However, feathers have a much lower density than lead, meaning that 1 kg of feathers will occupy a significantly greater volume than 1 kg of lead. Therefore, 1 kg of feathers has a greater volume than 1 kg of lead.
if the substance of the element has greater density you can make it float by carving it out so weight over volume of the object is lighter in effective density