| @Tony_A and Yabroff: in fact, many elements have melting points within the range of temperatures recorded on the surface of the Earth. They are: radon (-71C, -96F), mercury (-39C, -38F), bromine (-7C, 19F), francium (27C, 81F), cesium (29C, 83F), gallium (30C, 86F), rubidium (40C, 103F) and phosphorus (44C, 112F). (Because mercury freezes at -39C, thermometers for recording minimum temperatures are filled with alcohol instead). So several of them could be liquid at "room temperature" depending on how cold or warm is your room. Although most probably with -40 degrees (C of F, it's the same) the room would be heated somehow... |