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25 Cards in this Set
- Front
- Back
the radiation associated with an electric current and magnetic field, it varies periodically and travels at the speed of light
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electromagnetic radiation
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all of the frequencies of wave length of electromagnetic radiation
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electromagnetic spectrum
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the distance from any point on a wave to an identical point on the next wave
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wavelength
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the number of cycles of vibration per unit of time, also the number of waves produced in a given amount of time
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frequency
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the emission of electrons from a material when light of certain frequencies shines on the surface of the movement
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photoelectric effect
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the basic unit of electromagnetic energy, it characterizes the wave properties of electrons
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quantum
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a unit or quantum of light, a particle of electromagnetic radiation that has zero rest mass and carries a quantum of energy
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photon
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the lowest energy state of a quantized system
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ground state
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a state in which an atom has more energy than it does at its ground state
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excited state
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a diagram or graph that indicates the degree to which a substance emits radiant energy
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line-emission spectrum
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the uninterrupted broad band of all colors (wavelengths) emitted by incandescent solids
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continuous spectrum
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the principle that states that determines both the position and velocity of an electron or any other particle simultaneously impossible
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Heisenberg Uncertainty pronciple
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the study of the structure and behavior of the atom and of subatomic particles from the view that all energy comes in tiny individual bunches
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quantum theory
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a region in an atom where there is a high probability of finding electrons
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orbital
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a number that specifies certain properties of electrons
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quantum number
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the quantum number that indicates the energy orbital of an electron in an atom
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principle quantum number
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the quantum number that indicates the shape of an orbital
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angular momentum quantum number
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the quantum number that corresponds to the alignment of the angular momentum component with a magnetic field
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magnetic quantum number
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the quantum number that describes the intrinsic angular momentum of a particle
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spin quantum number
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the arrangement of the electrons in an atom
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electron configuration
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states that the structure of each successive element is obtained by adding on proton to the atom and one electron to lowest energy orbital
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aufbae principle
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the principle that states that two particles of a certain class cannot be exactly the same energy state
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pauli exclusion principle
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rule states that for an atom in the ground state the number of unpaired electron is the max possible and these unpaired electrons have same spin
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hunds rule
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one of the elements of group 18 of periodic table are unreactive
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noble gas
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an outer main energy levels fully occupied in most cases with 8 electrons
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noble gas configuration
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