W2013CHM2311 Part 5 Notes

E all pz two mos one bonding one an0bonding three mos

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Unformatted text preview: are: N (5) + O (6 × 3) + 1 e- = 24 O O N O O N N O O O O O π- MO Diagrams for Planar Polyatomic Molecules 2.  From the total number of electrons (which you will have found to get the resonance structures), subtract two electrons for each σ- bond. Where there is a mul0ple bond, only subtract two electrons since only one bond in the mul0ple bond is σ and the rest are π. Thus for NO3- there are 6 electrons in σ bonds. The sigma bond structure of NO3- is shown. ↳  these σ- bonds are based on the sp2 valence hybrid orbitals of nitrogen. O O O N O O N N N O O O O O O O σ- framework π- MO Diagrams for Planar Polyatomic Molecules 2.  From the total number of electrons (which you will have found to get the resonance structures), subtract two electrons for each σ- bond. Where there is a mul0ple bond, only subtract two electrons since only one bond in the mul0ple bond is σ and the rest are π. Thus for NO3- there are 6 electrons in σ bonds. The sigma bond structure of NO3- is shown. ↳  these σ- bonds are based on the sp2 valence hybrid orbitals of nitrogen. 3.  From the resonance structures find the minimum number of lone pairs on...
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