Problem: Determine the electron geometry (eg), molecular geometry (mg), and polarity of SO3.a) eg= trigonal bipyramidal, mg=trigonal planar, polarb) eg=trigonal planar, mg=trigonal planar, nonpolarc) eg=tetrahedral, mg=trigonal pyramidal, polard) eg=trigonal pyramidal, mg=bent, nonpolare) eg=tetrahedral, mg=tetrahedral, nonpolar

FREE Expert Solution

Step 1: Sulfur (EN = 2.5) is less electronegative than oxygen (EN = 3.5) so S is the central atom.


Step 2: The total number of valence electrons:


            Group             Valence Electrons

S          6A                   1 × 6 e6 e

O         6A                   3 × 6 e18 e

Total:  24 valence e


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Problem Details

Determine the electron geometry (eg), molecular geometry (mg), and polarity of SO3.

a) eg= trigonal bipyramidal, mg=trigonal planar, polar

b) eg=trigonal planar, mg=trigonal planar, nonpolar

c) eg=tetrahedral, mg=trigonal pyramidal, polar

d) eg=trigonal pyramidal, mg=bent, nonpolar

e) eg=tetrahedral, mg=tetrahedral, nonpolar

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