#35 BromineBromine is a chemical element with symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. Its properties are thus intermediate between those of chlorine and iodine. Atomic mass:79.904 amu Melting point:-7.2 C (265.95 K, 19.04 F) Boiling point:58.78 C (331.93 K, 137.804 F) Density:293 K: 3.119 g/cm3 |