The following table is about an atom or an ion. Look at your periodic table in order to complete it:
| $s$ | $n_p$ | $m$ | $q$ | $n_e$ | $n_n$ |
$s$: Symbol $n_p$: Number of protons $m$: Mass in atomic mass units $q$: Charge in electrons $n_e$: Number of electrons $n_n$: Number of neutrons