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QUESTION

# Based on the VSEPR theory, what is the molecular geometry of a molecule of PI3?

allows for the prediction of molecular shapes based on the number of electron pairs that surround their respective atoms.

In order to determine the molecular shape of the PI_3 molecule using Theory, its must first be determined.

SInce P has 5 , and each I atom has 7 , the molecule's Lewis structure will look like this:

Notice that P uses 3 to form with the three I atoms, which leaves it with one lone pair of electrons.

P has a steric number of 4 and a coordination number of 3, which means that it has a tetrahedral electron geomerty and a trigonal planar .

Here's a representation of PI_3's molecular geometry: