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11 Cards in this Set
- Front
- Back
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Electrons
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Negitivly charged particals inside the atom
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Nucleus
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Dense core of an atom
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Protons
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Makes up the Nuclues
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Neutrons
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No charge
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Atomic Number
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Tells you how many protons in a atom of an element
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Mass Number
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Equils the number of protons plus the number of neutrons in an atom of an element
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Isotope
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An atom that has the same number of protons but different number of neutrons related to other atoms of the same element
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Unified Atomic Mass Unit
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Equil to 1/12 of the mass of a carbon 12 atom
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Mole
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collection of a very large number of pariticals
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Violant Electrons
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Electrons of the outside layer of an atom
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Photon
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Obsorbing a partical of light
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