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The Quantum Idea
This program looks at Max Planck's theory of energy emission as bundles, which he called quanta, and Albert Einstein's explanation of the photoelectric effect; it further describes how these discoveries led scientists to use both the particle and the...(more details) |
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The Bohr Model
Niels Bohr was able to salvage Rutherford's model of the atom in spite of its shortcomings. Bohr studied quantized energies, orbit radii, and electron velocities and concluded that electrons may occupy only certain precise orbits, or energy levels. H...(more details) |
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Spectra
This program looks at Bohr's revolutionary proposals that brought atomic structure into the realm of quantum physics. Using spectroanalysis, Bohr was able to predict all frequencies of radiation for the hydrogen atom, but his model could not predict ...(more details) |
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The Rutherford Model
This program examines Ernest Rutherford's contributions to atomic theory, beginning with his use of radioactivity to probe the atom. (He concluded that it was mainly empty space.) Rutherford also proposed that the nucleus of the atom was positively c...(more details) |
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Smaller Than the Smallest
This program explores John Dalton's chemical atomic theory and the support it lent to previous observations such as Proust's law of definite proportions. The program also demonstrates experiments using electricity and devices like the cathode ray tub...(more details) |
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