35 Br
Halogen
Bromine
Liquid at room temperature.
Properties of Bromine
- Atomic number (Z)
- 35
- Symbol
- Br
- Atomic mass
- 79.904 g/mol
- Category
- Halogen
- Group
- 17
- Period
- 4
- Electron configuration
- [Ar] 3d¹⁰ 4s² 4p⁵
- Electronegativity (Pauling)
- 2.96
- Atomic radius
- 94 pm
- First ionization energy
- 1140 kJ/mol
- Melting point
- 265.8 K (-7.3 °C)
- Boiling point
- 332 K (58.9 °C)
- Density
- 3.122 g/cm³
- Phase at 25 °C
- Liquid
- Discovered
- Discovered in 1826
Frequently asked questions
What is Bromine?
Bromine (Br) is a halogen, element number 35 on the periodic table. Liquid at room temperature.
What is the atomic number and atomic mass of Bromine?
Bromine has atomic number 35 and an atomic mass of about 79.904 g/mol.
What is the electron configuration of Bromine?
The electron configuration of Bromine is [Ar] 3d¹⁰ 4s² 4p⁵.
Where is Bromine on the periodic table?
Bromine sits in group 17, period 4, and is classified as a halogen.