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An emission or absorption line in a spectrum that arises when an electron moves between two energy levels in an atom. A jump to a higher level requires an input of energy, and produces a dark absorption line. A drop to a lower level releases energy, producing a bright emission line.
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∙ 14y ago
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∙ 12y agoWhen electrons jump from the excited state to the ground state, the electrons emit energy in the form of light, producing a bright-line spectrum. Each element has its own unique bright-line spectrum.
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∙ 11y agoHeat the element usually in a flame, the atoms absorb energy, their electrons 'jump' from their natural state to an outer energy level. When the electrons move back to their 'ground' state, the normal energy level they occupy, they release the energy as part of the electromagnetic spectrum. Some of that is a 'bright light' spectrum.
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∙ 9y agoA spectral line is a single break in an otherwise continuous spectrum. As light passes through a gas, the physical conditions of said gas can create spectral lines.
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∙ 14y agowhen the electrons fall back into a lower energy level
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∙ 13y agoA bright line spectrum is produced when an electron falls from a higher energy state to that of a lower energy state.
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∙ 13y agoWhen electrons fall back to a lower enery level .
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∙ 13y agoThe dark line spectrum are formed by an individual atom, it is because in the gaseous state, the individual atoms are quite apart and they do not interact each other.
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What does the term bright line spectrum mean?
There are several kinds of spectra. Bright line spectrum, or emission spectrum, is when light emitted by a gas has an electrical discharge going through it, and it produces a spectrum of just a few isolated parallel lines.
How can you Distinguish absorption spectrum from emission spectrum?
Emission spectra are bright-line spectra, absorption spectra are dark-line spectra. That is: an emission spectrum is a series of bright lines on a dark background. An absorption spectrum is a series of dark lines on a normal spectrum (rainbow) background.
The bright-line spectrum produced by the excited atoms of an element contains wavelengths that are?
in the visible light range
Why did each compound produce a flame of a different color?
Different elements have different emission spectra, meaning that if the electrons in an atom are excited, they will release that energy in different color of light. The flame color depends on the elements in the compound.
Suppose you want to know the chemical composition of a distant star Which piece of information is most useful to you?
A telescope, whose light output would be sent through a spectral analysis machine of some type. That analysis of the emission spectra of the star would be compared to the known spectra of the elements to find the composition of the star.
What does the term bright line spectrum mean?
There are several kinds of spectra. Bright line spectrum, or emission spectrum, is when light emitted by a gas has an electrical discharge going through it, and it produces a spectrum of just a few isolated parallel lines.
How are the elements identified from bright light line spectra?
Each type of atom gives off a unique set of colors. The colored lines (or Spectral Lines ) are a kind of "signature" for the atoms
How do scientists use different spectra to figure out the composition of the stars outer layer?
Different chemical elements emit (or absorb) certain specific frequencies of light. When the light from a star is split in to it's rainbow spectrum of light, certain parts of the spectrum will be black (in absorption spectra) or brighter (in emission spectra). By comparing these lines to the known emission and absorption spectra of elements, the composition of a stars atmosphere can be determined.
What do the bright lines in a bright light spectrum tell us?
to identify elements
How can you Distinguish absorption spectrum from emission spectrum?
Emission spectra are bright-line spectra, absorption spectra are dark-line spectra. That is: an emission spectrum is a series of bright lines on a dark background. An absorption spectrum is a series of dark lines on a normal spectrum (rainbow) background.
What kind of spectrum do dark lines appear against a bright a bright background of colors ranging from red to blue?
Dark-line spectrum is a "photo-negative" of emission spectrum. It is the gaps that appear in precisely the same location as corresponding bright lines. produced by a cool gas with a hot solid and you
How a Continuous spectrum forms?
Continuous spectra of light are formed by all forms of white light. This includes light produced by common light bulbs like incandescent and fluorescents.
How do astronomers identify elements of the stars?
Elements are identified based on their absorption spectra. Every element absorbs a unique set of frequencies when light passes through it. Scientists can determine which elements are present based on which portions of the star's light are absorbed.
Why do scientists believe that stars contain the same elements as the solar system?
The elements on the visible part of distant stars can be obtained from the star spectra, that is, by analyzing the light that comes from the stars.
What is the spectrum of sunlight?
spectrum of light is the colors of son or u can say the elements of sun. we find out the elments of sun with the help of spectroscope, a prism in spectroscope help to break down the colors or spectra of sun light. spectrum of light is the colors of son or u can say the elements of sun. we find out the elments of sun with the help of spectroscope, a prism in spectroscope help to break down the colors or spectra of sun light.
What can you now say about the spectra from various light sources?
The light source will give a spectrum that shows what elements are present. Each element will give of a particular colour, almost like a fingerprint.
The bright-line spectrum produced by the excited atoms of an element contains wavelengths that are?
in the visible light range
