Question

why the dipole moment of NF3 is less than NH3.​

Answer 1

Answer:

Dipole Moment is maximum in those whose have more electronegativity difference so In NH3 more electronegative difference between N and H...So NH3 have more dipole moment

Answer 2

Answer:

Dipole moment is of NF3 is less than NH3 due to its structure as in NF3 florine is has more electronegativity than nitrogen it will attract the electrons towards itself and the loan pair electron of nitrogen attracts towards itself both apply oppsite for making its dipole movement less while in NH3 all the arrows are in one direction increasing its dipole movement

Explanation:

As you could see the above attached files contains the structure of both molecules.