What is the Priority Order of Electron Displacement Effects?

Electron displacement effects guide how electrons move inside molecules, affecting their reactivity and stability. The main types and their general priority order are:

1. Resonance effect (strongest)
2. Inductive effect
3. Hyperconjugation
4. Electromeric effect (temporary, with reagents)

Usually, resonance is the strongest and most influential effect in organic stability and reactivity.