Is HI a polar molecule

Answer 1

A molecule's polarity has two main contributing factors: symmetry and bond polarity. In order for a molcule to have poles, it must be asymmetrical and contain polar bonds. In the case of HI, the molecule is asymmetrical, however the difference in the electronegativities between hydrogen (with an electronegativity of 2.1) and iodine (with an electronegativity of 2.5) is technically too small for the H---I bond to be polar. However, there is a characteristic associated with polar molecules called its "dipole moment." The value of a polar molecule's dipole moment can be calculated by multiplying the bond length of the molecule (from nucleus to nucleus) by the charge of the molecules. Since iodine has such a large atomic radius, and therefore a larger bond radius than the hydrogen halides HF, HCl, and HBr, it can be thought of as having a very slight dipole moment. Therefore, HI is a polar molecule.

Answer 2

It's a difficult answer because one would think that it is polar because it is asymmetrical, and it's only dipole doesn't cancel out. But, the difference in electronegativity is only .4, which is classified as nonpolar. (0-.4 is nonpola4, .5-2 is polar, 2< is ionic)

Answer 3

Yes, HI (hydrogen iodide) is a polar molecule. This is because hydrogen and iodine have different electronegativities, causing an uneven distribution of electrons and creating a partial positive charge on the hydrogen atom and a partial negative charge on the iodine atom.

Answer 4

Yes. HI is polar molecule.

Answer 5

Yes. The negative end will be iodine.

Answer 6

HYdrogen iodide is a dipole.

Answer 7

polar