

<span class="sd">            n_atoms_max: The maximum number of atoms in a system.</span>
<span class="sd">            max_atomic_number: The highest atomic number</span>
<span class="sd">            min_atomic_number: The lowest atomic number</span>
<span class="sd">            atomic_numbers: List of present atomic numbers</span>
<span class="sd">            element_symbols: List of present atomic symbols</span>
<span class="sd">            min_distance: Minimum distance in the system</span>
<span class