* Barium (Ba): Barium is in Group 2 of the periodic table, meaning it has 2 valence electrons. It tends to lose these two electrons to achieve a stable octet, forming a +2 ion (Ba²⁺).
* Nitrogen (N): Nitrogen is in Group 15 of the periodic table, meaning it has 5 valence electrons. It tends to gain 3 electrons to achieve a stable octet, forming a -3 ion (N³⁻).
Therefore, the most likely charges of ions formed from barium and nitrogen are:
* Barium: Ba²⁺
* Nitrogen: N³⁻
