Atomic Spectra, Radioactivity, and Nuclear Reactions
Classified in Chemistry
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Emission and Absorption Spectra
The elements emit energy in the form of electromagnetic radiation, but only at a few specific frequencies. Elements also absorb specific frequencies when illuminated with electromagnetic radiation.
The de Broglie Hypothesis
The de Broglie hypothesis expanded the dual behavior of radiation, suggesting that matter, especially electrons, also exhibits both particle and wave aspects. According to this hypothesis, the energy of both matter and radiation is related to the frequency (f) of the wave associated with their movement through the expression E = hf. Thus, the wavelength associated with a material particle or photon momentum is λ = h / p.
The Uncertainty Principle
The principle of indeterminacy, or uncertainty... Continue reading "Atomic Spectra, Radioactivity, and Nuclear Reactions" »