Question

Cecil is working with samples of chlorine (Cl), oxygen (O), bromine (Br), and silver (Ag). The samples are all at room temperature. Which substance is most likely the most dense?

chlorine
oxygen
bromine
silver

Answer 1

Silver. At room temperature Ag is a solid metal with a density ≈10.5 g/cm³, much higher than liquid bromine (≈3.1 g/cm³) and far higher than gaseous chlorine or oxygen (both are only a few g/L, i.e. ≈0.001–0.003 g/cm³).