Difference between revisions of "Emission Spectra"
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: The [[spectrum]] of [[White Light|white light]] is a continuous change of [[colour]]s with all [[wavelength]]s having the same [[intensity]]. | : The [[spectrum]] of [[White Light|white light]] is a continuous change of [[colour]]s with all [[wavelength]]s having the same [[intensity]]. | ||
: An '''emission spectrum''' is a set of specific [[wavelength]]s with a high [[intensity]]. This appears as bright lines of [[colour]] on a [[spectrum]]. | : An '''emission spectrum''' is a set of specific [[wavelength]]s with a high [[intensity]]. This appears as bright lines of [[colour]] on a [[spectrum]]. | ||
| − | : A '''emission spectrum''' is created when [[electron]]s in high [[Energy Level|energy levels]] lose [[energy]] and fall to a lower [[energy]] [[emit]]ting a specific [[wavelength]] of | + | : A '''emission spectrum''' is created when [[excited]] [[electron]]s ([[electron]]s in high [[Energy Level|energy levels]]) lose [[energy]] and fall to a lower [[Energy Level|energy level]] [[emit]]ting a specific [[wavelength]] of [[electromagnetic Wave|electromagnetic wave]] when they do. |
Revision as of 11:58, 22 February 2019
Key Stage 4
Meaning
Emission spectra are the specific wavelengths of light emitted by the electrons in atoms as they lose energy.
About Emission Spectra
- The spectrum of white light is a continuous change of colours with all wavelengths having the same intensity.
- An emission spectrum is a set of specific wavelengths with a high intensity. This appears as bright lines of colour on a spectrum.
- A emission spectrum is created when excited electrons (electrons in high energy levels) lose energy and fall to a lower energy level emitting a specific wavelength of electromagnetic wave when they do.