Hope this helps! Related questions Question ce8f3. Question a7afa. Question f26ff. Question a7afe. Question fb. Why do elements emit colors when heated? Why is the electromagnetic spectrum continuous?
Why is the electromagnetic spectrum a transverse wave? Why are atomic spectra of an element discontinuous? In , the Danish physicist Niels Henrik David Bohr integrated the advances of Planck and Einstein into his new model of the atom to explain how matter could emit light in the form of particles. According to Bohr, the atom consists of negatively charged electrons that orbit around a positively charged nucleus.
The model further specified that electrons orbit the nucleus at well defined distances from the nucleus. An electron orbiting near the nucleus has relatively little energy because it is held in its orbital by the strong attractive force exerted by the nucleus. An electron in a starting position that is farther from the nucleus already has more energy because it must compensate for the great distance that separates it from the nucleus.
Less energy would thus be needed to make this electron jump to a higher level compared to an electron that started closer to the nucleus. According to Bohr, when a material is heated, some of the electrons in orbitals near the nucleus will absorb enough energy to allow them to jump to new orbital levels at great distance from the nucleus. The electrons, however, will eventually return to their original orbitals; when they do so, they must release enough energy so that their energy content again matches the energy level of the original orbital.
This particular resource used the following sources:. Skip to main content. Introduction to Quantum Theory. Search for:. Emission Spectrum of the Hydrogen Atom.
Learning Objective Calculate emission spectra for Hydrogen using the Rydberg formula. Key Points The wavelengths in a spectral series are given by the Rydberg formula.
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