35
Br
Bromine
Bromine
Bromine (Br)
Halogens · Liquid · Period 4 · Group 17
Element Properties
- Atomic Number
- 35
- Symbol
- Br
- Atomic Mass
- 79.9
- Category
- Halogens
- Standard State
- Liquid
- Period
- 4
- Group
- 17
- Electronegativity
- 2.96
- Atomic Radius
- 183
- Ionization Energy
- 11.81
- Electron Affinity
- 3.37
- Oxidation States
- +5, +1, -1
- Melting Point
- 265.95 K (-7.2 °C)
- Boiling Point
- 331.95 K (58.8 °C)
- Density
- 3.11
- Electron Configuration
- [Ar]4s2 3d10 4p5
- Year Discovered
- 1826
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Frequently asked questions
What is the atomic number of Bromine?
The atomic number of Bromine is 35, which equals the number of protons in its nucleus.
What is the atomic mass of Bromine?
The atomic mass of Bromine is approximately 79.9 u (one twelfth of the mass of a carbon-12 atom).
What is the electron configuration of Bromine?
The electron configuration of Bromine is [Ar]4s2 3d10 4p5.
Where is Bromine in the periodic table?
Bromine is located in period 4, group 17.
When was Bromine discovered?
Bromine was discovered in 1826.
Related elements
Same group
9
F
Fluorine
18.998
17
Cl
Chlorine
35.45
53
I
Iodine
126.904
85
At
Astatine
209.987
117
Ts
Tennessine
294.211