# Homework Help: Lewis dot, electronic and molecular geometry

1. Oct 30, 2008

### sami23

Draw the lewis dot, identify the electronic and molecular geometry and determine the polarity of a) NO2Cl and b) SOCl2

a) N has 6 valence electrons
O has 6(2) = 12 valence electrons
Cl has 7 valence electrons
Total : 25

For the Lewis Structure: (* is for space)

O-N-O
**|
**Cl
I distributed 6 dots around the 2 O's and Cl but N has one valence electron on top and it is unevenly distributed.

I think the electronic geometry is trigonal planar and it's polar.
I'm not sure about the molecular geometry.
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b) S has 6 valence electrons
O has 6 valence electrons
Cl has 7(2) = 14 valence electrons
Total: 26

For the Lewis Structure: (* is for space)

**O
**||
Cl-S-Cl
I distributed 6 valence electrons around the 2 Cl and 4 dots around O making a double bond between O and S.

I think the molecular geometry is trigonal pyramidal and it's non polar.
I'm not sure about the electronic geometry.

2. Oct 31, 2008

### GCT

Well how is the electronic geometry determined?