Bromine (Br)
Bromine is one of only two elements that are liquid at room temperature. It has a strong, unpleasant smell.
Properties of Bromine
- Atomic number
- 35
- Category
- Halogen
- Atomic mass
- 79.904 u
- Electron configuration
- [Ar] 3d¹⁰ 4s² 4p⁵
- Melting point
- 265.8 K (-7.35 °C)
- Boiling point
- 332 K (58.85 °C)
- Density
- 3.1028 g/cm³
- Electronegativity (Pauling)
- 2.96
- Appearance
- Reddish-brown liquid
- Discovered by
- Antoine Jérôme Balard (1826)
Facts about Bromine
- Bromine is one of only two elements that are liquid at room temperature (mercury is the other)!
- Bromine's name comes from the Greek word for "stench" because it smells terrible!
- Bromine was once used in old-fashioned photography!
- Sea water contains bromine — that's where most of it comes from!