Br
Bromine (Atomic Number 35)
Category: halogen | Period 4, Group 17 | Block: p
Deep reddish-brown liquid halogen with sharp pungent odor.
Atomic & Physical Constants
- Standard Atomic Weight:
- 79.904 u
- Standard State Phase:
- Liquid
- Electron Configuration:
- 2, 8, 18, 7
- Electronegativity (Pauling):
- 2.96
- Melting Point:
- 265.8 K
- Boiling Point:
- 332 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
Flame retardants, water treatment, pharmaceutical synthesis
Discovery History
Discovered by Antoine Jérôme Balard (1826).
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