Basic Information
Name:bromine
Symbol:br
Classification:Bromine is a halogen and a nonmetal
color:red-brown
Atomic weight :78.96
state: liquid
Melting Point: -7 oC , 277 K
Boiling Point:58.9 oC, 332 K
Shells: 2,8,18,7
Electron configuration:[Ar] 3d10 4s2 4p5
Density @ 20oC:3.122 g/cm3
Atomic volume:23.5 cm3/mol
Structure:layers of Br2
hardness: