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12 Cards in this Set
- Front
- Back
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The spectrum produced when atoms absorb specific wavelengths of incoming light as they become excited from lower to higher energy levels.
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Absorption Spectrum
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The continuum of wavelengths of radiant energy.
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Electromagnetic Spectrum
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The line spectrum produced when excited atoms emit photons characteristic of the element.
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Emission Spectrum
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Any electron configuration of an atom or molecule other than the lowest energy (ground) state.
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Excited State
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The number of cycles a wave undergoes per second.
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Frequency
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The electron configuration of an atom or ion that is lowest in energy.
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Ground State
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A quantum of electromagnetic radiation.
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Photon
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The observation that when light of sufficient energy shines on a metal, an electric current is produced.
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Photoelectric Effect
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A proportionality constant relating the energy and the frequency of a photon, equal to 6.626*10^-34 J/s.
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Planck's Constant
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A fundamental constant giving the speed at which electromagnetic radiation travels through a vacuum.
2.998*10^8 m/s. |
Speed of Light
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The principle stated by Werner Heisenberg that it is impossible to know simultaneously the exact position and velocity of a particle; the principle becomes important only for particles of very small mass.
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Uncertainty Principle
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The distance between any point on a wave and the corresponding point on the next wave, that is, the distance a wave travels during one cycle.
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Wavelength
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