Attribute | Bromine × | Chlorine × |
---|---|---|
Atomic mass (u) | 79.9 | 35.45 |
Standard state | Liquid | Gas |
Oxidation states |
|
|
1↑Electron configuration | [Ar]4s²3d¹⁰4p⁵ | [Ne]3s²3p⁵ |
Atomic radius (van der waals) (pm) | 183 | 175 |
Electronegativity (pauling scale) | 2.96 | 3.16 |
Electron affinity (eV) | 3.365 | 3.617 |
Ionization energy (eV) | 11.814 | 12.968 |
Boiling point (K) | 331.95 | 239.11 |
Melting point (K) | 265.95 | 171.65 |
Density (g/cm³) | 3.11 | 0.003214 |
Atomic number | 35 | 17 |
Group name | Halogen | Halogen |
Discovered (year) | 1826 | 1774 |
Symbol | Br | Cl |