12 - Quantum Flashcards
Atom Spacing
The distance between adjacent atoms in a crystal lattice.
de Broglie Equation
Relates the wavelength of a particle to its momentum.
Electron Diffraction
The spreading of electrons showing wave-like behavior.
Electronvolt (eV)
A unit of energy equal to the kinetic energy of an electron accelerated by 1 volt.
Photon
A particle of light with both wave and particle properties.
Photon Energy
The energy carried by a photon, proportional to its frequency.
Photoelectric Effect
Emission of electrons from a metal surface due to electromagnetic radiation.
Photoelectric Equation
Describes the energy exchange in the photoelectric effect.
Planck Constant (h)
A fundamental constant that links the energy of a photon to its frequency.
Threshold Frequency
The minimum frequency required to eject electrons from a material.
Wave-Particle Duality
The concept that particles exhibit both wave-like and particle-like properties.
Work Function (ϕ)
The minimum energy needed to remove an electron from the surface of a material.
