35 - Bromine diatomic nonmetal

Discovered by Antoine Balard in 1826

  • Atomic Radius (Å)
  • Cividis
Bromine

Bromine (from Ancient Greek:βρῶμος, brómos, meaning "stench") is a chemical element with symbol Br, and atomic number 35. It is a halogen. The element was isolated independently by two chemists, Carl Jacob Löwig and Antoine Jerome Balard, in 1825–1826.

H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
57-71 La-Lu Lanthanides
89-103 Ac-Lr Actinides
 Shell Electrons Orbitals
122 in 1s
282 in 2s + 6 in 2p
3182 in 3s + 6 in 3p + 10 in 3d
472 in 4s + 5 in 4p
BromineBrElectron 1Electron 2Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 9Electron 10Electron 11Electron 12Electron 13Electron 14Electron 15Electron 16Electron 17Electron 18Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7
79.9  u Atomic Mass
1.15  Å Atomic Radius
332  K Boiling Point
17 Group
-1, 1, 3, 5, 7 Common Oxidation States
1.2  Å Covalent Radius
3.1  g/cm³ Density
325  kJ/mol Electron Affinity
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5 Electron Configuration
[Ar] 3d10 4s2 4p5 Electron Configuration (semantic)
2.96 Electronegativity
35 Electrons
11.8  eV First Ionization Energy
-1, 5 ICSD Oxidation States
1139.9, 2103, 3470, 4560, 5760, 8550, 9940, 18600  kJ/mol Ionization Energies
266  K Melting Point
98 Mendeleev Number
4 Number of Shells
7 Electron Valency
45 Neutrons
35 Atomic Number
19 Number of Isotopes
-1, 1, 3, 4, 5, 7 Oxidation States
4 Period
Liquid Phase
35 Protons
2, 8, 18, 7 Electron Shell Occupations
0.474  J/(g K) Specific Heat