How are the continuous electromagnetic spectrum and atomic emission spectra the same?
They are both emission spectra, but one has all wavelengths while the other has only specific wavelengths with gaps between them.
What are continuous emission and absorption spectra how are they produced?
Continuous spectra (also called thermal or blackbody spectra) arise from dense gases or solid objects which radiate heat. They emit radiation over a broad range of wavelengths, thus the spectra appear smooth and continuous.
Is emission spectrum and line spectrum the same?
Unlike visible light which shows a continuous spectrum of all wavelengths, the emission spectra of atoms in the gas phase emit light only at specific wavelengths with dark spaces between them. This is called line spectra or atomic spectra since the emitted radiation is identified by bright lines in the spectra.
How are spectral lines both emission and absorption are formed?
When electrons move from a higher energy level to a lower one, photons are emitted, and an emission line can be seen in the spectrum. Absorption lines are seen when electrons absorb photons and move to higher energy levels.
Is the emission spectrum continuous?
This is called an emission spectrum (just peaks, not continuous). The E-M radiation frequencies absorbed and emitted match the allowed energy levels in the atom. The allowed energy levels in an atom depend mostly on the electric field configuration.
Is emission spectrum continuous or discontinuous?
Emission spectra are discontinuous atomic spectra as the light is emitted only at a certain wavelength with dark spaces between them. Absorption spectra are continuous atomic spectra as a continuum of radiation is passed through a sample which absorbs radiation of specific wavelength.
How are spectral lines produced?
Spectral lines are produced by transitions of electrons within atoms or ions. As the electrons move closer to or farther from the nucleus of an atom (or of an ion), energy in the form of light (or other radiation) is emitted or absorbed.…
How are line emission spectra produced?
An emission line will appear in a spectrum if the source emits specific wavelengths of radiation. This emission occurs when an atom, element or molecule in an excited state returns to a configuration of lower energy. The spectrum of a material in an excited state shows emission lines at discrete frequencies.
Why is line spectrum not continuous?
Atomic spectra also known as line spectra. Atomic spectra are discontinuous because the energy levels of electrons in atoms are quantized. The electrons in an atom can have only certain energy levels. There is no middle ground.
What is a continuous spectrum in physics?
Definition of continuous spectrum : a spectrum (as of light emitted by a white-hot lamp filament) having no apparent breaks or gaps throughout its wavelength range.
What is spectral-line emission and absorption?
Spectral-line emission and absorption are intrinsically quantum phenomena. Classical particles and waves are idealized concepts like infinitesimal points or perfectly straight lines in geometry; they don’t exist in the real world.
What is the relationship between emission lines and continuous spectrum?
There is a connection between emission lines from a gas and the continuous spectrum from a solid. As you crowd atoms together (as in a solid), the allowed energy levels in one atom start to become distorted due to the influence of the electric field of neighboring atoms.
How do you find the wavelength of an emission line?
The photon energy hν = h c / λ is close to the difference in level energies, which therefore determines the optical wavelength of the spectral emission line. Sometimes, discrete emission lines are observed on top of a continuous spectrum.
What is a line spectrum?
Line Spectra are the wavelengths of light emitted from an element when it’s electrons lose energy. The energy is lost in the form of photons of certain wavelengths, which are different for each material. A Line Spectrum can be create by passing current through an ionised gas.