In the Periodic Table, element X\text{X}X is in Group 13 and element Y\text{Y}Y is in Group 16 (6).
What is the likely formula of an ionic compound of X\text{X}X and Y\text{Y}Y?
X3Y2\text{X}_3\text{Y}_2X3Y2
X2Y3\text{X}_2\text{Y}_3X2Y3
X3Y6\text{X}_3\text{Y}_6X3Y6
X6Y2\text{X}_6\text{Y}_2X6Y2