I wish to write the following atomic level:
5s^2 1S_0
. Usually I use mhchem for these things (MWE):
Code: Select all
\documentclass[11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[version=3]{mhchem}
\begin{document}
\ce{5s^2 ^1S0}
\end{document}
Best,
Niles.