the wavelength of light emitted by the excited atoms of a particular element that makes up its bright line spectrum
Answers
Answer:
It’s produced by the electrons in the elements’ atoms jumping to lower energy states after being bumped upward by a collision with another atom or an incoming photon or electron or whatever.
As they do so, they release their extra energy by radiating photons, usually one photon per transition. If a single photon, then the transition has a well-defined energy.
The spectral lines are not infinitely thin, however. They are broadened by several causes:
The transition rate produces a broadening with a range of frequencies equal to that rate.
Something similar for collisions with other atoms and the like.
The atoms’ motions making Doppler shifts.
Explanation:
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Answer:
when a high-voltage electrical discharge is passed through a sample of hydrogen gas at low pressure, the resulting individual isolated hydrogen atoms caused by the dissociation of H2 emit a red light. Unlike blackbody radiation, the color of the light emitted by the hydrogen atoms does not depend greatly on the temperature of the gas in the tube. When the emitted light is passed through a prism, only a few narrow lines, called a line spectrum, which is a spectrum in which light of only a certain wavelength is emitted or absorbed.
Explanation:
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