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Bromine

35 Br

Bromine

Halogen period 4 group 17 p-block discovered: 1826

As a chemical element

Properties of the atom — they do not depend on what substance it is part of.

Atomic number
35
Atomic mass
79.90 a.m.u.
Electron configuration
[Ar]4s2 3d10 4p5
Electronegativity
2.96 on the Pauling scale
Atomic radius
183 pm
Ionization energy
11.814 eV
Electron affinity
3.365 eV
Oxidation states
+5, +1, -1

As a simple substance

Properties of the substance these atoms form under ordinary conditions.

State at 25 °C
Liquid
Melting point
265.95 K (-7,2 °C)
Boiling point
331.95 K (58,8 °C)
Density
3.11 g/cm³

Materials about this element