Editing Quantum Mechanics (section)

== <span style="color: #FFFFFF;">Remembering</span> ==
* '''Quantum''' — The minimum amount of any physical entity involved in an interaction; energy is not continuous but comes in discrete packets.
* '''Wave function (ψ)''' — A mathematical description of the quantum state of a system; its square modulus represents probability density.
* '''Superposition''' — The principle that a quantum system can exist in multiple states simultaneously until measured.
* '''Entanglement''' — A phenomenon where particles become correlated such that the state of one cannot be described independently of the others, even at a distance.
* '''Uncertainty Principle''' — Heisenberg's principle stating that certain pairs of physical properties (like position and momentum) cannot be known simultaneously with arbitrary precision.
* '''Photon''' — A quantum of light or other electromagnetic radiation.
* '''Electron''' — A subatomic particle with a negative elementary electric charge; exhibits wave-particle duality.
* '''Spin''' — An intrinsic form of angular momentum carried by elementary particles.
* '''Schrödinger Equation''' — The fundamental equation of motion in non-relativistic quantum mechanics; Hψ = Eψ.
* '''Observation/Measurement''' — The process that "collapses" a wave function from a superposition of states into a single definite state.
* '''Planck's Constant (h)''' — A physical constant that is the quantum of electromagnetic action; relates photon energy to frequency (E = hf).
* '''Wave-Particle Duality''' — The concept that every quantum entity may be described as either a particle or a wave.
* '''Quantum Tunneling''' — A phenomenon where a particle passes through a potential energy barrier that it classically could not surmount.
* '''Pauli Exclusion Principle''' — No two fermions (like electrons) can occupy the same quantum state simultaneously.
</div>

<div style="background-color: #006400; color: #FFFFFF; padding: 20px; border-radius: 8px; margin-bottom: 15px;">