Stability and reactivity

[Lauren_Wiegand_2K]

How do resonance structures affect the stability and reactivity of molecules?

[Ryaan Pal 1L]

The idea of a resonance structure is that a molecule may have multiple structures that are as favorable as one another. Just with different locations of double, single, and triple bonds (as well as lone pair electrons). The resonance structure is the idea that for even greater stability, the structure will lie somewhere between these possible structures. Oftentimes, if a bond is single in one and double in two, its true length will be somewhere in between that of a single and double bond. In essence, resonance structures help increase stability and lower reactivity.

[306001327]

Resonance structures affect the stability and reactivity of a molecule due to delocalized electron flow. This allows for the electrons to be able to branch out and form bonds with other atoms in reactions. In structures where there is resonance, the bond is essentially just shared with the other atom, which allows for stability that is almost the same as a atom achieving a perfect octet.