(A = central atom, X = ligand atom, E = free electron pair ), X and E tend to minimize repulsion i e , are arranged on the surface of a sphere around A forming
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(A = central atom, X = ligand atom, E = free electron pair ), X and E tend to minimize repulsion i e , are arranged on the surface of a sphere around A forming
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1. 1. Write a Lewis structure for NWrite a Lewis structure for N
22, NH, NH 33
, NO, NO 22 --
, NO, NO 33 --
S S 22
, SO, SO 22
, SO, SO 33
, SO, SO
33 22--
and mark those which are and mark those which are not necessarily resonance not necessarily resonance strucuresstrucures/hybrids./hybrids. oOctett
Octett rulerule, , hypervalencehypervalence, formal , formal chargescharges * No other resonance structure2.2. What is the meaning of VSEPR?What is the meaning of VSEPR?
The corresponding concept is a good tool for ...
The corresponding concept is a good tool for ...
and was established by...? and was established by...? V alence S hell E lectron P air R epulsion ConceptPredicting the shape/structure of molecules
It was established by Gillespie and Nyholm in the year 1957.3.3. Give the shape, the type, and the Give the shape, the type, and the psipsi--polyhedron/ polyhedron/
geometry of CO geometry of CO 22, NO, NO 22 --
, NO, NO 33 --
, SO, SO
33 22--
,XeF,XeF 44PCl PCl 55
(g), SF(g), SF 44
For a molecule AX
m E n (A = central atom, X = ligand atom, E = free electron pair ), X and E tend to minimize repulsion i.e., are arranged on the surface of a sphere around A forming simple polyhedra/geometric figures (E needs more space than X).MoleculeType-GeometryGeometry
CO 2 AX 2 linearlinear NO 2- AX 2Etrig. pl.bent
NO 3- AX 3 trig. pl.trig. pl.MoleculeType-GeometryGeometry
SO 32-AX 3