What metal has the lowest boiling point?
Post-transition metal further oxidation. Flerovium is expected to be a gaseous metal due to spin-orbit coupling "tearing" apart the 7p subshell, so that its 7s7p valence configuration forms a quasi-closed shell similar to those of mercury and copernicium. Indeed, experimental evidence suggests that it has a boiling point of around −60 °C, which is by far the lowest of all the metals. Solid flerovium should have a hexagonal close-packed structure and be a rather dense metal, with a density of around 14 g/cm. Flerovium is expected from its standard electrode potential of +0.9 V for the Fl/Fl couple to have similar nobility
Boiling point pressure chart to the right has graphs of the vapor pressures versus temperatures for a variety of liquids. As can be seen in the chart, the liquids with the highest vapor pressures have the lowest normal boiling points. For example, at any given temperature, methyl chloride has the highest vapor pressure of any of the liquids in the chart. It also has the lowest normal boiling point (−24.2 °C), which is where the vapor pressure curve of methyl chloride (the blue line) intersects the horizontal pressure line of one atmosphere (atm) of absolute vapor pressure. The critical point of a