PLS HELP I WILL GIVE BRAINLIST. Mercury has a density of 13.6 g/cm³. Which of these materials will float in mercury? Check all that apply.

iron, density: 7.8 g/cm³
aluminum, density: 2.7 g/cm³
silver, density: 10.5 g/cm³
gold, density: 19.3 g/cm³
uranium, density: 18.7 g/cm³
lead, density: 11.3 g/cm³