# Ionization related functionality (plasmapy.formulary.ionization)

Functions related to ionization states and the properties thereof.

## Functions

 ionization_balance(n, T_e) Return the average ionization state of ions in a plasma assuming that the numbers of ions in each state are equal. Saha(g_j, g_k, n_e, E_jk, T_e) Return the ratio of populations of two ionization states.

## Aliases

PlasmaPy provides aliases of the most common plasma functionality for user convenience. Aliases in PlasmaPy are denoted with a trailing underscore (e.g., alias_). For further details, please refer to the contributor guide’s section on aliases.

 Z_bal_(n, T_e) Alias for ionization_balance.