# What is the electron configuration for bromine?

[Ar] $4 {s}^{2} 3 {d}^{10} 4 {p}^{5}$
The full version of this is: $1 {s}^{2} 2 {s}^{2} 2 {p}^{6} 3 {s}^{2} 3 {p}^{6} 4 {s}^{2} 3 {d}^{10} 4 {p}^{5}$