![]() ![]() When excited, an electron moves to a higher energy level or orbital. The frequencies of light that an atom can emit are dependent on states the electrons can be in. Therefore, when this light passes through a gas, the gas atoms may absorb certain wavelengths to produce a line absorption spectrum.īlack hydrogen absorption lines are at the same wavelength as the bright hydrogen emission lines. The principle of the atomic emission spectrum explains the varied colors in neon signs, as well as chemical flame test results (described below). This is called a line absorption spectrum. gas discharge tube In an electric discharge, the emission spectra of helium is an example of. A tube filled with gas through which electricity is passed is called a (n). According to Bohrs model of the atom, orbits closer to the nucleus would require the electrons to have a greater amount of energy, and orbits farther from the nucleus would require the electrons to have a smaller amount of energy. What would an atomic emission spectrum look like if the electron's energy levels in an atom were NOT quantized The spectrum would be continuous. So if a continuous spectrum travels through a cooler gas, it will ‘pull out’ or absorb certain wavelengths of light to produce a series of dark lines on a continuous spectrum of light. Bohrs atomic model is also commonly known as the model. When a gas is cool, it absorbs the same wavelengths of light as it would emit when it is hot. A gas cloud on its own, without a light source behind it, produces a line emission spectrum. Hot gases don’t produce a continuous emission spectrum.Ī hot gas only emits certain wavelengths of light to produce bright lines on a dark background. When a gas is very hot, it doesn’t emit all wavelengths of light. The electron releases energy as it moves to a higher energy level. ![]() The electron absorbs energy as it moves to a higher energy level. Study with Quizlet and memorize flashcards containing terms like When light released as a result of electrons falling back down to the ground state is. The electron absorbs energy as it moves to a lower energy level. A light source, such as a star or a filament bulb, gives a continuous emission spectrum. Atomic Spectra Quiz 5.0 (5 reviews) Which best explains what happens when an electron moves from an excited state to the ground state a. This is called a continuous emission spectrum. This light, when seen through a prism or diffraction grating, shows all wavelengths of visible light. Studying the line spectra produced by hot gases and absorbed by cooler gases allows us to identify the elements in stars. ![]()
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