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7 Cards in this Set
- Front
- Back
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protons
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(positive charge) in the nucleus of an atom
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electrons
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(negative charge) travel around nucleus of an atom
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neutrons
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(no charge neutral) in the nucleus of an atom
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nucleus
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small,dense,positively charged center of an atom.
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electron cloud
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travel around the nucleus at a close to high speed.
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mass number
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sum of protons and neutrons in the nucleus of an atom.
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atomic number
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number of protons in the nucleus of an atom.
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