Question

Resonating structure of ${\mathrm{SO}}_3$?

Answer 1

Resonating structure:

• Resonance structures are usually known as the sets of Lewis structures describing the delocalization of electrons in a polyatomic ion or a molecule.
• It is a manner of describing the bonding in particular molecules or ions by adding many contributing structures which are basically called canonical structures or resonance.
• All the hybrid structures should be equivalent in nature to define resonance stability, but none of them independently describes the whole property of any given system.

Resonating structure of ${\mathrm{SO}}_3$:

• There is a total of three true resonating structures that can be drawn for ${\mathrm{SO}}_3$.
• Among them in the first structure, all atoms have a formal charge of zero.
• for the next structures, S has a formal charge of +1 and one of the O atoms has a formal charge of -1.
• However, for the last structure,S has a formal charge of +2 and two of the O atoms have formal charges of -1, and these three are known as the most stable structures.

Hence, the resonating structure of ${\mathrm{SO}}_3$has been shown above.