What are the key principles of quantum physics that govern the behavior of particles at the subatomic level?

Quantum physics is based on several key principles that govern the behavior of particles at the subatomic level. These principles include wave-particle duality, superposition, and entanglement. Wave-particle duality suggests that particles can exhibit both wave-like and particle-like behavior. Superposition states that particles can exist in multiple states simultaneously until they are observed. Entanglement refers to the phenomenon where particles become interconnected and their states are correlated, even when separated by large distances. These principles are fundamental to understanding the behavior of particles at the subatomic level in quantum physics.