Physics:Quantum atoms/spectral line

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A spectral line is a discrete frequency or wavelength of light emitted or absorbed by an atom. It arises from a transition of an electron between different energy levels.

File:Atomic spectrum lines.png

Spectral lines produced by electron transitions between discrete energy levels in an atom.

Description

Each spectral line corresponds to a specific difference in energy between two energy levels. When an electron transitions to a lower level, a photon is emitted; when it moves to a higher level, a photon is absorbed.

The set of spectral lines forms an atomic spectrum, which is characteristic of each element.

Properties

See also

Table of contents (185 articles)

Index

Full contents

9. Quantum optics and experiments (5) ↑ Back to index
14. Plasma and fusion physics (8) ↑ Back to index
Conceptual illustration of plasma physics in a fusion context, showing magnetically confined ionized gas in a tokamak and the collective behavior governed by electromagnetic fields and transport processes.
Conceptual illustration of plasma physics in a fusion context, showing magnetically confined ionized gas in a tokamak and the collective behavior governed by electromagnetic fields and transport processes.

References


Author: Harold Foppele