I need help finding the formulas of these ionic compounds

Lithium Phosphide
Cesium Nitride
Potassium Iodide
Barium Fluoride
Rubidium Nitride
Barium Oxide

Explanation please if you can <3​ I will give brainliest and rate 5 stars.

Respuesta :

Li3PO4
Cs3N
KL
BaF2
BaO
Reaction of. An acid and a base so it consists of an cation and anion so then you take the name of the anion and then the name of the cation take the atomic symbols and depending on the group it’s in add the numbers ? I think x