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-the building blocks of all matter |
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-the center of an atom - the location of neutrons and protons |
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-positively charged particles |
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-particles that have no charge |
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-Negatively charged particles -Found on the outside of an atom |
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-a pure substance that cannot be broken down either physically or chemically -organized in the Periodic Table of Elements |
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-atoms of the same element that have a different number of neutrons |
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-formed when two different elements combine |
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-a compound formed when electrons are shared |
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-a compound in which the atoms are held together by covalent bonds |
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-an atom that has lost or gained one or more electrons |
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-an electrical attraction between two oppositely charged atoms or groups of atoms called ions |
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-the attractive forces between a positive and a negative region |
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-the process of which atoms or groups of atoms are reorganized into different substances |
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-on the left side of a chemical formula |
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-on the right side of the arrow |
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the weak interaction between the hydrogen atom and a fluorine, oxygen, or nitrogen atom |
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-lowers the amount of activation energy |
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