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electromagnetic radiation
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a form of energy that exhibits wavelike behavior as it travels through space
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electromagnetic spectrum
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All the forms of electromagnetic radiation
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excited state
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a state in which an atom has a higher potential energy than it has in its ground state
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frequency
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The number of waves that pass a given point in a specific time, usually one second
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ground state
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The lowest energy state of an atom
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photoelectric effect
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The emission of electrons from a metal when light shines on the metal
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photon
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A particle of electromagnetic radiation that has zero rest mass and carries a quantum of energy
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quantum
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The minimum quantity of energy that can be gained or lost by an atom
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wavelength
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The distance between corresponding points on adjacent waves
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angular momentum quantum number
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The quantum number that indicates the shape of the orbital
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Heisenberg uncertainty principle
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It is impossible to determine simultaneously both the position and velocity of an electron or any other particle
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magnetic quantum number
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The quantum number that indicates the orientation of an orbital around the nucleus
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orbital
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A three-dimensional region around the nucleus that indicates the probable location of an electron
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principal quantum number
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The quantum number that indicates the main energy level occupied by the electron
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quantum number
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A number than specifies the properties of atomic orbitals and the properties of electrons in orbitals
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