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Vocabulary flashcards covering key concepts of Electrons and Quantum Mechanics.
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Electromagnetic Radiation (EMR)
The transmission of energy via the propagation of electric and magnetic waves through a vacuum or other medium.
Wavelength (λ)
The distance between successive peaks of a wave.
Frequency (ν)
The number of peaks that pass a specific point per unit time; measured in Hertz (Hz).
Speed of Light (c)
The distance light travels per unit time in a vacuum, approximately 2.997925 x 10^8 m/s.
Photon
A packet of energy that makes up light, proposed by Albert Einstein.
Quantum Theory
The theory that describes the behavior of energy and matter on atomic and subatomic levels.
Blackbody Radiation
The emission of electromagnetic radiation from a heated solid body.
Photoelectric Effect
The emission of electrons from a material when it absorbs light, depending on the frequency of the light.
Wave-Particle Duality
The concept that light and matter exhibit properties of both waves and particles.
Planck's Equation
The equation E = hv, which relates energy (E) to frequency (ν) through Planck's constant (h).
Bohr Model
The atomic model in which electrons travel in orbits around the nucleus, allowing quantized energy states.
Excitation
The process by which an electron absorbs energy and moves to a higher energy level.
Relaxation
The process where an electron releases energy and drops to a lower energy level, often emitting a photon.
De Broglie's Equation
The equation λ = h/mu, suggesting that particles like electrons can exhibit wave-like behavior.
Diffraction
The bending of waves as they pass around obstacles or through narrow openings.
Rydberg Constant (RH)
A physical constant related to the wavelengths of spectral lines in many chemical elements.
Binding Energy (ϕ)
The minimum energy needed to remove an electron from the surface of a material.