CBSE Class 12-science Answered
resonance
Asked by khem singh | 31 Jan, 2012, 10:46: AM
Expert Answer
Rules for drawing reasonable resonance structures for a given molecule
- All resonance structures must be valid Lewis structures.
- In all possible resonance structures the atomic nuclei must not change their positions.
- All atoms must not change their hybridization.
- Only electron distribution may be changed.
- All resonance structures must have the same number of unpaired electrons.
- All atoms involved in the resonance (electron sharing) and the atoms directly bonded to them
must lie in (or nearly in) the same plane.
for example:
- If the structures differ in the position of atoms, they are isomers, not resonance structures
Answered by | 31 Jan, 2012, 12:37: PM
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