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39 Cards in this Set
- Front
- Back
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Anything that has both mass and volume
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matter
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A homogeneous mixture in which one substance is dissolved in another substance
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solution
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A process whereby one substance is transformed into another substance with new and different properties
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chemical change
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A phase of matter in which the substance has a definite volume and a definite shape
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solid
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A characteristic of a substance which is not dependent uponthe amount of matter present
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intensive property
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A pure substance composed of two or more elements chemically combined
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compound
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The quantity of matter in a substance
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mass
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A substance composed of only one type of atom
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element
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A change in the size, shape, or state of substance
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physical change
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A phase of matter in which the substance has no definite shape, but a definite volume
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liquid
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solid to gas
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sublimation
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standard unit of the metric system
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kilogram
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standard unit of length in the metric system
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meter
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the negative electrode of an electrical source
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cathode
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atoms of the same element with different numbers of neutrons
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isotope
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The positive electrode of a voltage source
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anode
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number of protons in an atom
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atomic number
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The lowest energy state possible for an electron
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ground state
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set of 4 numbers which describe the energy or behavior of an electron
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quantum number
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The study of substances exposed to some sort of continuous, exciting energy
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spectroscopy
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A distinct pocket or quanta of radiant energy
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photon
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The space occupied by the electron in an atom
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electron cloud
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An energy subdivision of an energy level
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sublevel
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Unit of frequency equal to one cycle or wavelength per second
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hertz
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The space designated by the thirdquantum number that describes electrons with the same energy level, sublevel, and spatial orientation.
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orbital
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Theory which says that electrons have properties of both particles and waves
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wave-particle duality
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the distance between 2 corresponding poiints on a wave, represented by "lambda"
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wavelength
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Theory that says no two electrons can have the same set of quantum numbers
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Pauli exclusion principle
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Number of complete wave cycles per unit of time
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frequency
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Number that describes the energy level of an electron or the size of the electron cloud
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principle quantum number
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A description of the arrangement of the electrons in an atom
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electron configuration
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Theory that says that radiant energy is transferred in discreet units, called quanta
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quantum theory
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The principal quantum number best describes the....
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size of the electron cloud
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The maximum number of electrons in an energy level is.......
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72
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a pictorial arrangement of the elements based upon their atomic numbers and electron configurations
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periodic table
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The attraction of an atom for an electron
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electron affinity
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An element that has both properties of metals and non-metals
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metalloid
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Elements within a group have
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same number of energy levels
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An element with 7 electrons in the outer energy level would be a
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transition element
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