35 Br
Halogen
Bromine
Liquid at room temperature.
Properties of Bromine
- Atomic number (Z)
- 35
- Symbol
- Br
- Atomic mass
- 79.904 g/mol
- Category
- Halogen
- Group
- 17
- Period
- 4
- Electron configuration
- [Ar] 3d¹⁰ 4s² 4p⁵
- Electronegativity (Pauling)
- 2.96
- Atomic radius
- 94 pm
- First ionization energy
- 1140 kJ/mol
- Melting point
- 265.8 K (-7.3 °C)
- Boiling point
- 332 K (58.9 °C)
- Density
- 3.122 g/cm³
- Phase at 25 °C
- Liquid
- Discovered
- Discovered in 1826