Electrons and Quantum Mechanics

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Vocabulary flashcards covering key concepts of Electrons and Quantum Mechanics.

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17 Terms

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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.

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Wavelength (λ)

The distance between successive peaks of a wave.

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Frequency (ν)

The number of peaks that pass a specific point per unit time; measured in Hertz (Hz).

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Speed of Light (c)

The distance light travels per unit time in a vacuum, approximately 2.997925 x 10^8 m/s.

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Photon

A packet of energy that makes up light, proposed by Albert Einstein.

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Quantum Theory

The theory that describes the behavior of energy and matter on atomic and subatomic levels.

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Blackbody Radiation

The emission of electromagnetic radiation from a heated solid body.

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Photoelectric Effect

The emission of electrons from a material when it absorbs light, depending on the frequency of the light.

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Wave-Particle Duality

The concept that light and matter exhibit properties of both waves and particles.

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Planck's Equation

The equation E = hv, which relates energy (E) to frequency (ν) through Planck's constant (h).

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Bohr Model

The atomic model in which electrons travel in orbits around the nucleus, allowing quantized energy states.

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Excitation

The process by which an electron absorbs energy and moves to a higher energy level.

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Relaxation

The process where an electron releases energy and drops to a lower energy level, often emitting a photon.

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De Broglie's Equation

The equation λ = h/mu, suggesting that particles like electrons can exhibit wave-like behavior.

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Diffraction

The bending of waves as they pass around obstacles or through narrow openings.

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Rydberg Constant (RH)

A physical constant related to the wavelengths of spectral lines in many chemical elements.

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Binding Energy (ϕ)

The minimum energy needed to remove an electron from the surface of a material.