Bromine, Br
Index
Bromine is a halogen in group VII A of the periodic table with atomic number 35, an atomic weight of 79.91, and a density of 3.12 Mg/m3. In the solid state it forms a cubic crystal with a melting point of -7.2 C and a boiling point of 58 C.

The electronic configuration of Bromine is (Ne)(3d10)(4s2)(4p4). Its (-1) ionic radius is 0.195 nm.