Draw the Lewis structures for the following molecules. For each molecule, determ

Question

Draw the Lewis structures for the following molecules.  
For each molecule, determine its (a) electronic geometry, (b) number of nonbonding domains on the central atom, and (c) polarity of the molecule.

Remember, that molecules that have zero nonbonding domains on the central atom AND have all of the outer atoms the same are NONPOLAR.
Generally, molecules with different outer atoms or with more than one nonbonding domain are POLAR.
However, these may be NONPOLAR ONLY IF the dipoles cancel each other due to a symmetrical arrangement.

SiCl4

(a) electronic geometry:  ---Select--- linear trigonal planar tetrahedral trigonal bipyramidal octahedral

(b) number of nonbonding domains on central atom:  ---Select--- 0 1 2 3 4 5

(c) molecule polarity:  ---Select--- polar nonpolar

CS2

(a) electronic geometry:  ---Select--- linear trigonal planar tetrahedral trigonal bipyramidal octahedral

(b) number of nonbonding domains on central atom:  ---Select--- 0 1 2 3 4 5

(c) molecule polarity:  ---Select--- polar nonpolar

SO2

(a) electronic geometry:  ---Select--- linear trigonal planar tetrahedral trigonal bipyramidal octahedral

(b) number of nonbonding domains on central atom:  ---Select--- 0 1 2 3 4 5

(c) molecule polarity:  ---Select--- polar nonpolar

SF2

(a) electronic geometry:  ---Select--- linear trigonal planar tetrahedral trigonal bipyramidal octahedral

(b) number of nonbonding domains on central atom:  ---Select--- 0 1 2 3 4 5

(c) molecule polarity:  ---Select--- polar nonpolar

Explanation / Answer

SiCl4

(a) Electron pair geometry = Tetrahedral

(b) Number of non bonding electron pairs = 0

(c) Molecule polarity = Non polar

CS2

(a) Electronic geometry = Linear

(b) Number of non bonding electrons = 0

(c) molecule polarity = Non polar

SO2

(a) Electronic geometry = Trigonal planar

(b) Number of non bonding domains = 1

(c) Molecular polarity = polar

SF2:

(a) Electronic geometry = Tetrahedral

(b) Number of non bonding domains = 2

(c) Molecule polarity = polar

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