Molecular Polarity Video Lessons

Concept:

# Problem: Which choice best describes the polarity of ClF5? a) The molecule is polar and has polar bonds.b) The molecule is nonpolar and has polar bonds.c) The molecule is polar and has nonpolar bonds.d) The molecule is nonpolar and has nonpolar bonds.

###### FREE Expert Solution

We're being asked to determine the polarity of ClF5.

For this problem, we need to do the following steps:

Step 1: Determine the central atom in this molecule.

Step 2: Calculate the total number of valence electrons present.

Step 3: Draw the Lewis structure for the molecule.

Step 4: Draw dipole arrows for each bond.

Step 5: Determine the polarity of the molecule.

Step 1: Determine the central atom in this molecule.

Chlorine (EN=3) is less electronegative than fluorine (EN=4) so chlorine is the central atom.

Step 2: Calculate the total number of valence electrons present.

The total number of valence electrons present in ClF3 is:

Group             Valence Electrons

Cl           7A                   1 × 7 e7 e

F            7A                   5 × 7 e35 e

Total:  42 valence e

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###### Problem Details

Which choice best describes the polarity of ClF5?

a) The molecule is polar and has polar bonds.

b) The molecule is nonpolar and has polar bonds.

c) The molecule is polar and has nonpolar bonds.

d) The molecule is nonpolar and has nonpolar bonds.