Database:
--orbitals: made n and l into separate columns (e.g., 1s now n=1, l=s)
--elements_orbitals: created table with colums element_id, orbital_id, count, valence. Started populating by hand; will be a big pain to do manually if include all (including non-valence) electrons. Think about automating in Excel, or excluding non-valence orbitals?