Bromine (Br) is a chemical element belonging to the Halogen group, with atomic number 35 and atomic mass 79.904 u.
Identity
- Name: Bromine
- Symbol: Br
- Atomic number: 35
- Atomic mass: 79.904 u
Position in the periodic table
- Group: 17
- Period: 4
- Category: Halogen
Physico-chemical properties
- Standard state: Liquid
- Melting point: -7.2°C
- Density (20°C): 3.1028 g/cm³
- Electron configuration: [Ar] 3d¹⁰ 4s² 4p⁵
Scientific description
Bromine is a halogen element (symbol Br, atomic number 35), located in group 17 and period 4. Its standard atomic mass is 79.904 u.