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5
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the path of elctrons as they move around the nuclei of atoms
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7
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a positively charged particle that is one of the basic structures of the nuceuls of an atom
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8
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the sum of the number of protons and neutrons in the nucleus of an atom
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10
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a type of emission spectrum showing a series of lines separated by black areas
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12
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the particle and/or gamma ray radiation emitted by the unstable nucleus of some isotopes
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13
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the state in which an stom absorbs energy and an elctron moves from a lower to a hgiher energy level
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15
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light emitted form a source and separated into it scomponent colors or frequencies
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16
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an analytical technique for identifying crystalline materials
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17
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the number of protons in the nucleus of an atom
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