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22 Cards in this Set
- Front
- Back
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electromagnetic spectrum
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All forms of electromagnetic radiation
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Wavelength
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The distance along a wave between similar points
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Frequency
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The number of waves that pass a given point per second
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period
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Time in seconds for one wave to pass a point, reciprocal of frequency
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photoelectric affect
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The emission of electrons when light hits a metal
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Quantum
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The minimum quantity that can be gained or lost by an atom
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Photon
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A particle of electromagnetic radiation that has zero rest mass and a quantum of energy
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Ground state
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The lowest energy state of an atom
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Excited state
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The highest energy state of an atom
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Line emission spectrum
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A series of wavelengths of emitted light created when the visible portion of light from excited atoms is shone through a prism
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Heisenberg uncertainty principle
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It's impossible to determine the velocity and exact position of an electron or any other atom
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Quantum theory
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A mathematical description of the wave properties of an electron and other particles
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Principal quantum number
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The quantum number that describes the main energy level occupied by an electron
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Orbital quantum number
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The shape of the orbital (sublevel)
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Magnetic quantum numbers
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The quantum number that indicates the orientation of the orbital around the nucleus
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Spin quantum number
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The quantum number that indicates the spins of the two electrons in an orbital
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Electron configuration notation
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the arrangement or the electrons in an atom
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Aufbau Principle
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An electron occupies the lowest possible energy level that can receive it
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Pauli Exclusion Principle
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No two electrons can have the same set of quantum numbers if in the same atom
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Hund's Rule
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Orbitals of the same energy each occupied by one electron before any orbital is occupied by second electron
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Noble gas
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a Group 18 element- Helium, Krypton, Neon, Radon, and Argon
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noble gas configuration
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{He}4s^2 or something
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