Question

IQ7 does not exist while IF7 exixt . Why ?

Answer 1

We know that in the periodic table Fluorine [ F = 3.98 ] is the most electronegative element. so it signifies that Florine only need 1 electroun to fill it outermost shell and complete their stability.

So Florine can forms the bond by the Noble gases configuration of Iodine .

But on the other hand Chlorine is not enough electronegative to achieve it's that much of stability and form stable bond with the noble gas iodine.

Answer 2

Answer:

steric hindrance is the main factor behind this