Which statement best describes the polarity of the molecule PI3?A.It is nonpolar, because the bonds are polar and the molecular geometry does not affect polarity.B.It is polar, because it is a trigonal-planar molecule and the bond polarities between phosphorus (P) and iodine (I) add together.C.It is nonpolar, because it is a trigonal-planar molecule and the bond polarities cancel each other out.D.It is nonpolar, because the electronegativity difference between phosphorus (P) and iodine (I) is very small.SUBMITarrow_backPREVIOUS
Question
Which statement best describes the polarity of the molecule PI3?A.It is nonpolar, because the bonds are polar and the molecular geometry does not affect polarity.B.It is polar, because it is a trigonal-planar molecule and the bond polarities between phosphorus (P) and iodine (I) add together.C.It is nonpolar, because it is a trigonal-planar molecule and the bond polarities cancel each other out.D.It is nonpolar, because the electronegativity difference between phosphorus (P) and iodine (I) is very small.SUBMITarrow_backPREVIOUS
Solution
The correct answer is D. The molecule PI3 is nonpolar because the electronegativity difference between phosphorus (P) and iodine (I) is very small. This means that the electrons are shared almost equally between the atoms, resulting in a nonpolar molecule.
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