Six Electron Groups Octahedral Geometry

The stracture of this molecule is highly symmetrical all six bonds are equivalent. 

Chapter 10 Chemical Bonding II Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory 

The molecular geometry of N03 is determined by the number of electron groups around the central atom (N). Begin by drawing a Lewis structure of NOs . 

NO3 has5 + 3(6) + 1 = 24 valence electrons. The Lewis structure has three resonance structures  

The hybrid structure is intermediate between these three and has three equivalent bonds. 

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