# How do you write the noble-gas electron configuration for bromine?

$\left[A r\right] 3 {d}^{10} 4 {s}^{2} 4 {p}^{5}$
$1 {s}^{2} 2 {s}^{2} 2 {p}^{6} 3 {s}^{2} 3 {p}^{6}$