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Basic unit of matter
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Atom
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The center of an atom which contains protons and neutrons
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Nucleus
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Negatively charged particle
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Electron
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Substance consisting of of 1 type of atom
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Element
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Atom of an element that has a number of neutrons different from that of other atoms of the same element
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Isotope
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Substance formed by the chemical combo of 2 or more elements in definate proportions
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Compound
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Bond formed when 1 or more electrons are transferred from one atom to another
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Ionic bond
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Bond formed between the sharing of electrons between atoms
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Covalent bond
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Smallest unit of most compounds
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Molecule
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Slight attraction that develops between the oppositely charged regions of nearby molecules
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Van der waals forces
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