In this work, the chemi-ionization/recombination processes in tom- Rydberg atom collisions are considered as factors of influence on the ionization degree, atom excited-state populations and hydrogen molecule abundance in the dense moderately ionized regions in AGNs, as for example in clouds around the central black hole.
The obtained results demonstrate the fact that the considered chemi-ionization/recombination processes for principal quantum number $2 \le n \le 10$, and $5000\textrm{ K} \le T \le 12000\textrm{ K}$ must have certain influence on the optical properties of some parts of Narrow-Line Seyfert 1 Galaxies.