A-level Chemistry/OCR (Salters)/The Atmosphere/Ozone

Structure

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Ozone can be assigned two different Lewis structures, but neither one accurately represents the structure and bonding in the O3 molecule.

 
Canonical structures of ozone

Spectroscopic data indicates both O−O bonds in ozone are equal in length and strength. The central oxygen atom is positively charged and the terminal oxygen atoms each carry partial negative charge.