Problem: Part B. If you include structures in which sulfur has an expanded octet and exclude structures with triple bonds, how many resonance structures can be drawn for sulfur trioxide, SO3?Express your answer as an integer.Often it is possible to write more than one correct electron-dot structure for a molecule or ion, differing only in the placement of valence electrons. The actual electronic structure of the species is a composite of all these contributing structures. This composite is referred to as a resonance hybrid and the species is said to exhibit resonance. The contributing resonance structures are shown being linked by a double-headed arrow (↔).

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Part B. If you include structures in which sulfur has an expanded octet and exclude structures with triple bonds, how many resonance structures can be drawn for sulfur trioxide, SO3?

Express your answer as an integer.


Often it is possible to write more than one correct electron-dot structure for a molecule or ion, differing only in the placement of valence electrons. The actual electronic structure of the species is a composite of all these contributing structures. This composite is referred to as a resonance hybrid and the species is said to exhibit resonance. The contributing resonance structures are shown being linked by a double-headed arrow (↔).

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