| Element | Bromine | Symbol | Br |
| Atomic Number | 35 | Molar Mass | 79.91 gmol-1 |
| Electron Configuration | [Ar]3d104s24p5 | Normal State | liquid nonmetal |
| Density @STP | 3.12 g cm-3 | Melting Point | -7oC |
| Boiling Point | 59oC | Stable Isotopes | 79Br, 81Br |
| Atomic Radius | 114 pm | Ionic Radius | 196 (1-) pm |
| Electronegativity (Pauling) | 2.96 | Ionization Energy (1st) | 1140 kJ mol-1 |
| Ionization Energy (2nd) | 2104 kJ mol-1 | Ionization Energy (3rd) | 3500 kJ mol-1 |
| Molar Heat Capacity | 20.8 J K-1mol-1 | Standard Molar Entropy | 175 J K-1mol-1 |
| Enthalpy of Fusion | 10.8 kJ mol-1 | Enthalpy of Vapourization | 30 kJ mol-1 |