Sodium combines with an anion $(x)$ to form an ionic compound with the general formula $N{a}_{3}x.$

What would be the most likely formula for the ionic compound formed between barium ion and the anion $"x"?$

Hint: You need to figure out the charge for $x$ from its general formula wi sodium.

$B{a}_3{x}_2$

Bax

$B{a}_{2}x$

$Ba{x}_2$