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Sweetyme123
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Why more emission lines than absorption lines are usually observed in the atomic spectra of most elements hence explain why this occures?
Ask yourself (or find out) how an emission spectrum can be generated in a Lab. Find out how absorption spectrum can be observed or measured. Then think in practical terms.Sweetyme123 said:Why more emission lines than absorption lines are usually observed in the atomic spectra of most elements hence explain why this occures?
Emission lines and absorption lines are spectral features that appear in the spectrum of light emitted or absorbed by an object. They are caused by the interaction between light and the electrons in the atoms or molecules of the object.
Emission lines are caused by the emission of photons when electrons in an atom or molecule transition from a higher energy state to a lower energy state. Absorption lines are caused by the absorption of photons when electrons in an atom or molecule transition from a lower energy state to a higher energy state.
Emission lines and absorption lines are used to study the chemical composition and physical properties of objects in space. By analyzing the specific wavelengths of these lines, scientists can determine the elements present and their relative abundances, as well as other characteristics such as temperature and density.
The main difference between emission lines and absorption lines is the direction of the light. Emission lines appear as bright lines in a dark background, while absorption lines appear as dark lines in a bright background. Additionally, emission lines are produced by the emission of photons, while absorption lines are produced by the absorption of photons.
Emission lines and absorption lines can be used to determine the distance of objects in space through a technique called spectroscopic parallax. By measuring the shift in the wavelengths of these lines, scientists can calculate the distance of the object based on its known spectral characteristics.