Two elements X and Y combine to form a compound XY. Under what conditions the bond formedbetween them will be ionic ?

Two elements X and Y combine to form a compound XY. Under what conditi

1.	Two elements X and Y combine to form a compound XY. Under what conditions the bond formedbetween them will be ionic ?
Answer» If the difference in ELECTRONEGATIVITIES of X and Y is 1.7. If the difference in electronegativities of X and Y is more than 1.7. If the difference in electronegativities of X and Y is less than 1.7. If both X and Y are highly ELECTRONEGATIVE. Solution :For the formation of an IONIC bond, the electronegativies of TWO ATOMS should differ by more than `1.7`.