How does line spectra differ from emission spectra?

Answer 1

Answer 1

The wavelengths contained in a light source...

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Answer 2

It is a spectrum of energy that is mainly concentrated at particular a wavelength. It is produced by excited atoms and ions as they retreat into a lower energy level.

Answer 2

Emission lines refer to the fact that glowing hot gas emits lines of light, whereas absorption lines refer to the tendency of cool atmospheric gas to absorb the same lines of light. When light passes through gas in the atmosphere some of the light at particular wavelengths is scattered resulting in darker bands.

Answer 3

The main difference between line spectra and emission spectra is whether the material in question is blocking or giving off light.

Line spectra is found when light passes through a material, such as interstellar dust clouds, or hydrogen plasma on the surface of the sun. any light which comes through the material will come through without the spectra absorbed by the materials. The easiest way to think of this example is our sun; the fusion reaction at the core gives off black body radiation, the same as a light bulb. what this means is, it radiates light at every frequency, IE white light. the reason our sun is yellow is because of the large amounts of sodium, which absorbs many colors of light. When the light of the sun is measured, there are dark "lines" in different places of the spectra, where the hydrogen, sodium, and other elements present in the outer layers of the sun have absorbed their particular set of frequencies. Line spectra is how scientists can tell you what each individual star is composed of, as each element has it's own signature set of lines.

Emission spectra is light given off when any gaseous material is excited electrically. Neon lights, fluorescent lights, and both hydrogen and sodium bulbs shoot an electric current through a gas, which causes the electrons in it to jump up one or more shells. Because of the instability of this configuration, the electron immediately goes back to its normal shell, giving off the excess energy as a photon in one of the same frequency lines as in the previous paragraph, dependent on how much energy the electron gives back off. hydrogen, having only one electron, has 4 emission lines, for the different energies due to jumping one, two, three, or four shells. Other atoms, such as Neon, have multiple handfuls of emission(and absorption) frequencies, due to there being more electrons present.

Answer 4

put simply- a LINE SPECTRUM is the electromagnetic radiation of a few specific frequencies of light.

Answer 5

When the gases or vapors of chemical substances are heated by electric spark , light is emitted The color of the light depends on the substance under investigation.

Answer 6

A line spectrum contain lines due to the electron transitions in molecules or atoms.

Answer 7

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