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| the smallest particle of matter; the smallest unit of an elament that retains the properties of that elament. |
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| the tiny central core of an atom. |
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| the negative particle which rotates around the nucleus of an atom;(indicated by a negative symbol,-) |
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Definition
| the neutral particle in the nucleus of an atom, has no charge |
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Definition
the positively charged particle in the nucleus of an atom,(indicated by the plus symbol,+) |
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| a positively or negatively charged atom because the atom has gained or lost electrons |
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| an atom with a differennt number of neutrons. |
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| Russian chemist and inventor; creator of the periodic table of elements that had yet to be discovered. |
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| equals the number of protons an atom contains. |
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Term
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Definition
| equals the average of the elements isotopes. |
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