35 · Br
Bromine
Obtained by Löwig around 1825 and published by Balard in 1826.
Identity
- Atomic number
- 35
- Symbol
- Br
- Canonical name
- Bromine
- Category
- halogen
- Group
- 17
- Period
- 4
- Block
- p
Properties
These quantities come from the Periodic Table JSON compilation. They have not yet been checked, one by one, against CIAAW atomic weights or NIST measurements. A value marked estimated is not a measurement.
- Atomic mass
- 79.904 u
- Electron configuration
- [Ar] 3d10 4s2 4p5
- Electrons per shell
- 2, 8, 18, 7
- Standard state
- liquid
- Density
- 3.1028 g/cm³
- Melting point
- 265.8 K
- Boiling point
- 332 K
- Electronegativity
- 2.96 Pauling
- First ionization energy
- 1,139.9 kJ/mol
- Electron affinity
- 324.537 kJ/mol
History
Student work not published first
Discovery · jointly credited · about 1825
Löwig obtains bromine around 1825. Balard’s publication comes first.
Publication
Discovery · jointly credited · 1826
Balard publishes bromine extracted from the mother liquors of salt marshes.
Etymology
- Theme
- property
- Language
- grec
- Root
- bromos
- Meaning
- stench
Scientists
Places and institutions
- Paris — historical setting : France — present country : France
See also
Sources
- IUPAC, Periodic Table of the Elements
- Bowserinator, Periodic Table JSON. Compilation secondaire d’où viennent les grandeurs physiques importées (masse, densité, températures, énergies). Elles ne sont pas revérifiées une à une auprès du NIST ou de la CIAAW.
- John Emsley, Nature’s Building Blocks: An A–Z Guide to the Elements