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Not all lights emitted by the spectrum are viewable to the naked eye, it also includes ultra violet rays and infra red lighting, an emission is formed when an excited gas is viewed directly though a spectroscope. ... Each element emits a characteristic set of discrete wavelengths according to its electronic structure,
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en.wikipedia.org/wiki/Emission_spectrum
en.wikipedia.org/wiki/Emission_spectrum
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The light emitted by a blackbody object is called blackbody radiation. ... Do you see light at all different wavelengths/colors or only a few discrete wavelengths? ... In space, atoms in a gas can get excited when light from a continuous source heats the gas. We cannot do this easily because it requires extreme temperatures,
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astronomy.nmsu.edu/astro/a110labs/labmanual/node11.html
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Optical light runs from about 400 to 700 nanometers. ; It's the same way as we move throughout the electromagnetic spectrum. Each range of light we have defined above corresponds to a range of frequencies (or wavelengths) of light vibrations. ... This process is called emission because a photon of light is emitted by the atom,
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fuse.pha.jhu.edu/~wpb/spectroscopy/basics.html
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Consider the excited state photon in the example above. When that electron relaxes into its normal state, a photon of the same wavelength of light will be emitted. If a gas is heated, rather than bombarded with light, the electrons can be pushed into an excited state and emit photons in much the same way.
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science.jrank.org/pages/6362/Spectroscope.html
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The emittance of an object quantifies how much light is emitted by it. ... This line spectrum is also called the Atomic Spectrum because it originates in the element. ... is formed when an excited gas is viewed directly though a spectroscope. ... Each element emits a characteristic set of discrete wavelengths ...
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wapedia.mobi/en/Emission_spectrum
wapedia.mobi/en/Emission_spectrum
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The dark background means that at almost every wavelength, the intensity is zero! Light is only being emitted at discrete wavelengths, and these are called EMISSION LINES. ... A luminous solid, liquid or dense gas emits light of all wavelengths. ... Because optical light with a short wavelength is blue, and long wavelength...
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www.astro.psu.edu/users/cpalma/astro1h/class6.html
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Isotope: Atoms with the same atomic number but different mass numbers, because of a difference in the number of neutrons. ... Line spectrum - The spectrum of light emitted by excited atoms in the gas phase, consisting of discrete wavelengths; Rydberg equation - An equation that was possible to calculate the wavelength of the...
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fairbornchempage.com/Ap/Key%20Terms/termsdefined.htm
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Before gas lighting was invented, there was a tremendous demand for animal oil. The primary source ... White light LEDs are fabricated from gallium nitride blue diodes by coating the semiconductor die with a phosphor material, which emits a broad range of visible wavelengths when excited by light emitted from the blue diode.
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micro.magnet.fsu.edu/primer/lightandcolor/lightsourcesi...
micro.magnet.fsu.edu/primer/lightandcolor/lightsourcesintro.html
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7.2 Fermi gas model. ... This model could account for the stability of atoms, but could not account for the discrete wavelengths observed in the spectra of light emitted from excited atoms. ... Because photons of a definite energy would be emitted when electrons moved from one orbit to another, this model could explain...
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www.biggerbooks.com/book/0470025328
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