Chapter 3, Problem 31P

What noble gas has the same electronic configuration as each ion?

1. ${\text{O}}^{\text{2-}}$

${\text{Mg}}^{\text{2}}{}^{\text{+}}$

${\text{Al}}^{\text{3}}{}^{\text{+}}$

${\text{S}}^{\text{2}}{}^{\text{-}}$

${\text{F}}^{\text{-}}$

${\text{Be}}^{\text{2+}}$