35Liquid
Br 79.904 Atomic mass · uHalogens
Bromine
Bromine (from Ancient Greek:βρῶμος, brómos, meaning "stench") is a chemical element with symbol Br, and atomic number 35. It is a halogen. The element was isolated independently by two chemists, Carl Jacob Löwig and Antoine Jerome Balard, in 1825–1826.
Discovery 1826 (Antoine Jérôme Balard)
K2L8M18N7
Physical properties
Values for the element in its standard state.
- Density
- 3.12g/cm³
- Melting point
- 266K
- Boiling point
- 332K
- Atomic radius
- 114pm
- Bonding type
- Covalent network
- Molar heat
- Not available
Inside the atom
Electron arrangement and the energy behind its behavior.
Full electron configuration
1s, 2 electrons; 2s, 2 electrons; 2p, 6 electrons; 3s, 2 electrons; 3p, 6 electrons; 3d, 10 electrons; 4s, 2 electrons; 4p, 5 electrons;
[Ar] represents 18 core electrons. The full view shows them explicitly.
35 electrons Orbital order preserved from source
- Electronegativity
- 2.96Pauling scale
- First ionization energy
- 1,140kJ/mol
- Electron affinity
- 325kJ/mol
- Van der Waals radius
- 185pm
Br BromineAtomic number 35
1,140kJ/mol
Atomic numberGaps indicate unavailable data
About bromine
- Appearance
- Not recorded
- Discovery
- 1826 (Antoine Jérôme Balard)
- Data source
- Read the reference
A missing value means it is unavailable in this reference dataset. Values can vary with measurement method and conditions.