#35
Bromine
diatomic nonmetal· Liquid·79.904 u
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.
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Identity
- Symbol
- Br
- Atomic Number
- 35
- Atomic Mass
- 79.904 u
- Category
- diatomic nonmetal
- Block
- p-block
- Period
- 4
- Group
- 17
- Appearance
- Chemical element with atomic number 35 (Br)
- Year Discovered
- 1826 CE
- Discovered By
- Antoine Jérôme Balard
- Named By
- stink
Electrons
- Configuration
- [Ar] 3d10 4s2 4p5
- Full Configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5
- Shells
- 2, 8, 18, 7
- Electronegativity
- 2.96
- Electron Affinity
- 324.537
- Oxidation States
- +5, +1, -1
- Ionization Energies
- 1139.9, 2103, 3470, 4560, 5760 … +3 more
Physical Properties
- State at
- Liquid
- Melting Point
- 265.8
- Boiling Point
- 332
- Density
- 3.1028
- Crystal Structure
- Orthorhombic
- Magnetic Ordering
- Diamagnetic
Mechanical
- Atomic Radius
- 94 pm
- Covalent Radius
- 120 pm
- Van der Waals
- 185 pm
Thermal & Electrical
- Thermal Conductivity
- 0.122 W/(m K) W/(m·K)
- Specific Heat
- 474 J/(kg K) J/(g·K)
- Heat of Vaporization
- 15.4 kJ/mol kJ/mol
- Heat of Fusion
- 5.29 kJ/mol kJ/mol
Abundance
- Universe
- 7.00 ppb
- Sun
- 0
- Meteorite
- 1.2 ppm
- Earth's Crust
- 2.4 ppm
- Ocean
- 67.3 ppm
- Human Body
- 2.9 ppm