What is the ststematic name for ba2n2?

The systematic name for Ba₂N₂ is barium nitride. In this compound, barium (Ba) has a +2 oxidation state, while nitrogen (N) has a -3 oxidation state. The formula indicates that two barium ions combine with two nitride ions to balance the charges. Thus, it simplifies to Ba₃N₂ when written in its simplest form.