Define line spectrum. Emission Spectrum & Absorption Spectrum. In Stokes lines An atom consists of a number of negatively charged electrons bound to a nucleus containing an equal number of positively charged protons. Absorption spectra. A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies. Balmer lines are historically referred to as "H-alpha", "H-beta", "H-gamma" and so on, where H is the element hydrogen. Recommended Videos . Continuous spectrum is a spectrum having all the wavelengths within a given limit whereas line spectrum is a spectrum having some lines of wavelengths within a given limit. As the re-emitted light is unlikely to be emitted in the same direction as the absorbed photon, this gives rise to dark lines (absence of light) superimposed on the continuous spectrum. Four of the Balmer lines are in the technically "visible" part of the spectrum, with wavelengths longer than 400 nm and shorter than 700 nm. Parts of the Balmer series can be seen in the solar spectrum. line spectrum synonyms, line spectrum pronunciation, line spectrum translation, English dictionary definition of line spectrum. Line Spectra. For observing the absorption spectrum, electromagnetic radiations are bombarded on a sample that absorbs radiation of certain wavelengths. Analyzing spectra: 2 points each The absorption line spectra for six hypothetical stars, each with different temperatures, are shown below. An absorption spectrum is like a photographic negative of an emission spectrum. For example, when a high-voltage electrical discharge is passed through a … Such kind of spectra is known as atomic spectra or line spectra. In star: Line spectrum. Discover free flashcards, games, and test prep activities designed to help you learn … Other articles where Line spectrum is discussed: spectroscopy: Basic atomic structure: The emission and absorption spectra of the elements depend on the electronic structure of the atom. Although objects at high temperature emit a continuous spectrum of electromagnetic radiation, a different kind of spectrum is observed when pure samples of individual elements are heated. As the electrons move closer to or farther from the nucleus of an atom (or of an ion), energy in the form of light (or other radiation) is emitted or absorbed.… Read More; Stokes lines. Thus, continuous spectrum and line spectrum differ from each other according to the presence or absence of lines in the spectrum. A spectral line is like a fingerprint that can be used to identify the atoms, elements or molecules present in a star, galaxy or cloud of interstellar gas.If we separate the incoming light from a celestial source using a prism, we will often see a spectrum of colours crossed with discrete lines. top. Quizlet is a lightning fast way to learn vocabulary. For each absorption line spectrum, the short wavelengths of light (or blue end) of the electromagnetic spectrum are shown on the left side and the long wavelengths of light (or red end) of the spectrum are shown on the right side. An absorption spectrum occurs when light of all wavelengths passes through a cold, dilute gas and atoms in the gas absorb at characteristic frequencies. Heavy Metals In Water. Spectral lines are produced by transitions of electrons within atoms or ions. The nucleus n. A spectrum produced by a luminous gas or vapor and appearing as distinct lines characteristic of the various elements constituting the gas. 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