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Definition
| The smallest unit of matter. |
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Definition
| Neutral particle formed when atoms share electrons. |
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Definition
| Positively-charged particle in the nucleus of an atom. |
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Definition
| Electrically-neutral particle that has the same mass as a proton and is found in an atom's nucleus. |
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Definition
| Negatively-charged particle that exists in an electron cloud formation around an atom's nucleus. |
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Definition
| Region surrounding the nucleus of an atom, where electrons are most likely to be found. |
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Definition
| Substance that cannot be broken down into simpler substance. |
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Term
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Definition
| Number of protons in the nucleus of an atom of a given element. |
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Term
| Atomic Mass (Mass Number) |
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Definition
| The sum of neutrons and protons in the nucleus of an atom. |
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Term
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Definition
| A central part about which other parts are grouped |
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