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35 - Bromine diatomic nonmetal

Discovered by Antoine Balard in 1826

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.
Shell Electrons Orbitals
1 2 2 in 1s
2 8 2 in 2s + 6 in 2p
3 18 2 in 3s + 6 in 3p + 10 in 3d
4 7 2 in 4s + 5 in 4p
BromineBr Electron 1 Electron 2 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 15 Electron 16 Electron 17 Electron 18 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7
79.9  u Atomic Mass
1.1  Å Atomic Radius
332  K Boiling Point
1.2  Å Covalent Radius
3.1  g/cm³ Density
324.54 Electron Affinity
2.96 Electronegativity
11.81  eV First Ionization Energy
266.05  K Melting Point
4 Number of Shells
7 Electron Valency
35 Atomic Number
2, 8, 18, 7 Electron Shell Occupations
0.47  J/(g K) Specific Heat