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6 Cards in this Set
- Front
- Back
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atom
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the smallest particle of an element
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proton
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positively charged particle located in the nucleus
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electron
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negatively charged particle located out side the nucleus
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neutron
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a particle that has no electrical charge located in the nucleus
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periodic table
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a table of the elements arranged by atomic numbers
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chemical formula
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an expression that shows the number and types of atoms joined in a compound
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