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Working principle of atomic emission spectroscopy?
An emission spectrum is the spectrum of frequencies of the electromagnetic radiation emitted (by an atom or molecule) during a transition from a high energy to a low energy level.
What is the difference between absorption and emission spectrum?
Emission spectrum: lines emitted from an atom.Absorption spectrum: absorbed wavelengths of a molecule.
What colors of visible light are found in the emission spectrum of hydrogen?
Red, blue, green, and violet are found in the emission spectrum of hydrogen.
How does an emission spectrum of a gas in a discharge tube differ from a white light spectrum?
It differs by that white light spectrum is continuous and consists of light of all wavelengths. Emission spectrum is not continuous. It consists of bright lines at specific wavelengths, with complete darkness between them.
Could you use an emission spectrum of an element to identify it?
No.
Working principle of atomic emission spectroscopy?
An emission spectrum is the spectrum of frequencies of the electromagnetic radiation emitted (by an atom or molecule) during a transition from a high energy to a low energy level.
What is the difference between absorption and emission spectrum?
Emission spectrum: lines emitted from an atom.Absorption spectrum: absorbed wavelengths of a molecule.
Is an atomic emission spectrum a continuous range of colors?
No. Atomic emission spectrum is non-contiuous and it is named as line spectrum.
Explain why the fluorescence emission spectrum of a polyaromatic molecule in solution mirrors the shape of the absorption spectrum regardless of the excitation frequency?
Generally fluorescence emission spectrum is independent of the excitation wavelength because of the rapid internal conversion from higher energy initial excited states to the lowest vibrational energy level of the excited state
What is a flame tested used for?
To identify an unknown sample by its emission spectrum
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.
Which type of spectrum is associated with the radiation of most stars?
absorption spectrum
Is it possible for two metals to have the same emission spectrum?
No. It is not possible for two metals to have the same emission spectrum. For metals to have the same emission spectrum, they would need for their electrons to have duplicate orbitals. That would be impossible due to the exclusion principle.
Explain the difference between the continuous spectrum of white light and the atomic emission spectrum of an element?
The difference between continuous spectrum and the atomic emission espectrum of an element is that in emission spectrum, only certain specific frequencies of light are emitted while in a continuous spectrum, a continuous range of colors are seen in the visible light.
An emission spectrum can be used to?
Identify elements
How does the number of lines in the emission spectrum for an element compare with the number of lines in the absorption spectrum?
An emission spectrum depend on electrons transition in the atom of a chemical element; and elements are different.Absorption spectrum is based on the different absorption pics of different molecules, depending on the frequency of radiation.Spectral methods are largely used in analytical chemistry.
What colors of visible light are found in the emission spectrum of hydrogen?
Red, blue, green, and violet are found in the emission spectrum of hydrogen.
