Bromine

Bromine facts

Latin nameBromum
English nameBromine
chemical symbolBr
atomic number35
relative atomic mass79,904
period4
groupVII.A
classificationhalogens
discovery year1826
discovererA. J. Balard
melting point [°C]-7,2
boiling point [°C]58,78
critical temperature [°C]315
critical pressure [MPa]10,34
density [g cm-3]3,119
electronegativity [Pauling]2,96
oxidation states-I, I, V, VII
electron configuration[Ar]3d10 4s2 4p5
atomic radius [pm]94
covalent radius [pm]114
specific heat [J g-1K-1]0,473
heat of fusion [kJ mol-1]5,286
thermal conductivity [W m-1 K-1]0,12
el. conductivity [S m-1]1.10-10
1. ionizing potential [eV]11,8138
2. ionizing potential [eV]21,8
3. ionizing potential [eV]36,0
state at normal conditionsliquid

Bromine is a heavy, mobile, reddish-brown liquid. It is the only liquid nonmetallic element.

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