Question

name the following ionic species. bas
barium sulfide
boron sulfide
boron sulfite
barium sulfur

Explanation:

• Barium sulfide: In ionic compounds, the name is formed by combining the name of the cation (barium, $Ba^{2 + }$) and the anion. The anion here is sulfide ($S^{2 - }$).
• Boron sulfide: Boron is $B$, not related to $Ba$ in $BaS$.
• Boron sulfite: Sulfite is $SO_{3}^{2 - }$, not relevant to $S^{2 - }$ in $BaS$ and boron is $B$ not $Ba$.
• Barium sulfur: The anion part should be named as sulfide (for $S^{2 - }$) not just sulfur.

Answer:

barium sulfide