Fluorine atom is more electronegative than iodine atom yet, HF has lower acid strength than HI. Explain?

Give reason : PH_3 has lower boiling point than NH_3

HF is a weaker acid than HCl why?

Why Fluorine atom has unexpectedly less negative Delta_("eg") H than chlorine.

Explain why A has lower boiling point than B ?

Give reasons for the following: a] Metals have a tendency to form cations. b] Fluorine atom is smaller than chlorine atom. c] Non-metals have a tendency to gain electrons.

Give reason: PH_(3) has lower boiling point than NH_(3)

Give reason: PH_(3) has lower melting point than NH_(3)

Explain why amines are more basic than amides.