Fractional abundances of different nondissolved bound states (s,ν) with respect to the total number of electrons (free and bound), n_sν/n₀, as functions of mass density ρ, for B = 10¹¹ G and T = 2 × 10⁵ K (left panel), B = 10¹¹ G and T = 5 × 10⁵ K (middle panel), and B = 10¹² G and T = 5 × 10⁵ K (right panel). The fractional abundances of tightly bound states (ν = 0) are plotted by dot-dashed lines, and loosely bound states (ν ≥ 1) by dashed lines. The solid lines show the total fractional abundance of the atoms that contribute to bound-bound and bound-free opacities.