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10 Cards in this Set
- Front
- Back
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Quantum Mechanics |
Definition: Study of the atomic structure using wave properties of the electron Related: Electrons do not behave in the way that objects in the macro world behave |
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Lamba |
Definition: used as the sign fro wavelength when measuring wave, distance between two maxima |
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Frequency |
Definition: The number of cycles that happen per second Notes: represented as v |
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Relationship between wavelength and frequency |
Definition: Wavelength(Lamba)*Frequency(v) = Distance* 1/second = distance/second = speed = c I.E (Lambda)(v) = c |
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Photon |
Definition: A fixed unit of light |
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Planck's Quantum Theory |
Definition: The enrgy of a photon is given by E =hv or E= h*c/Lambda where h is the Planck Constant = 6.63 * 10^-34 J s Note: energy can only be emitted in multiples of hv so hv, 2hv, 3hv Side Note: higher frequency higher energy |
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Photoelectric Effect |
Definition: For a electrons to be ejected from metal, the photons have to surpass the threshold frequency Note: hv = hv_o +KE where KE=kinetic energy and v_o equals threshold frequency |
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Energy levels in atomic spectra |
Definition: The levels at which an atom loses energy. The transitions between these leves are fixed Note: (Delta)E = hv |
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The Bohr Model` |
Definition: A model for the H atom that is based on the assumption that classical laws of electrodynamics do not apply on the atomic scale |
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The Postulate of the Bohr Model |
Definition: the energy of the orbits of an electron is (-2.18*10^-18)/n^2 where n is the orbit number |
