A molecule is thought to be more stable than molecules with a low resonance structure if it has a number of resonance structures. The resonance enables the delocalization process, which reduces the overall energy of the molecule because its electrons take up a lot of space.
Resonance is the relatively large selective response of an object or a system to an external oscillatory force that causes it to vibrate in step or phase. First, acoustical systems like musical instruments and the human voice were studied for resonance.
A measure of stability is the likelihood that an object will collapse when pushed or moved. While unstable objects collapse quite easily, stable ones do so very rarely. When the center of gravity of an object is "outside" the base, or edge, on which it rests, the object will collapse over.
A molecule is thought to be more stable than molecules with a low resonance structure if it has a number of resonance structures. The resonance enables the delocalization process, which reduces the overall energy of the molecule because its electrons take up a lot of space.