# line emission spectrum example

Emission-line spectra Low-density clouds of gas floating in space will emit emission lines if they are excited by energy from nearby stars. When an absorption spectrum and emission spectrum are combined, you get a continuous spectrum with all the wavelengths. (a) When an electric discharge is passed through hydrogen gas at low pressure, a bluish light is emitted. Truly white light, like that emitted by some stars and moons is a perfect example of continuous spectrum. Hydrogen spectrum is an example of line emission spectrum or atomic emission spectrum. Other articles where Line spectrum is discussed: spectroscopy: Basic atomic structure: The emission and absorption spectra of the elements depend on the electronic structure of the atom. (b) This light shows discontinuous line spectrum of several isolated sharp lines through prism. Every element has a unique atomic emission spectrum, as shown by the examples of helium $$\left( \ce{He} \right)$$ and iron $$\left( \ce{Fe} \right)$$. There are two types of line spectrum: an emission spectrum and an absorption spectrum. This hypothetical element shall have 4 energy levels. Line spectrum can therefore be found in both absorption and emission spectra which are exact opposites of each other. Take for example an element, which will be named X. Classical theory was unable to explain the existence of atomic emission spectra, also known as line-emission spectra. The line emission (atomic) spectrum of an element is unique. In a very simplistic way you can consider a gas of atoms of a substance illuminated by light. Each line represents a unique wavelength, and the entire thing is unique to that particular element. No ads = no money for us = no free stuff for you! The emission of photons through electronic relaxations in atoms produces a line emission spectrum. Spectroscopy is the study of emission and absorption spectra. Line Spectrum. Examples Line emission spectrum of H violet n6-n2 blue ng-> nz green n4 n2 Yed ng n2 Calculate the energy of the light emitted when an e- from n=4 to n= 2 goe What is the wavelength of this light ? An emission line will appear in a spectrum if the source emits specific wavelengths of radiation. It is a sequence of lines of different color/frequency that represents a kind of "photograph" of the structure of an atom. Line emission spectra (atomic spectra) can be used to identify the presence of an element in a sample because no two elements produce the same line emission (atomic) spectrum. The first is also called a bright line spectrum and consists of a few brightly colored lines against a dark background. Explain why the line spectrum doÄs not contain a liné Corresponding to â¦ This means that the gas is receiving energy carried by the photons of light (as in E=hf). Each element has a specific set of energy levels, or allowed quantities of energy that electrons can absorb. 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