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5 Cards in this Set
- Front
- Back
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Atom |
the smartest particle of an element ; contains , protons , neutrons , and electrons. |
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Nucleus |
the central core of an atom containing protons and neutrons. |
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Protons |
located in the nucleus ; has a positive charge determine an elements idenity. |
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Electrons |
located in the electron cloud around nucleus , has a negative charge |
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Valence Electrons |
electrons in the outer most energy level of an atom : determine the chemical properties of an element ( ex reactivity |
