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Related Flashcards
Cards In This Set
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The smallest unit of matter that is unique to a particular element
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Atoms
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___ have a positive charge and a mass of 1.
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Protons
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Have a neutral charge and a mass of 1.
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Neutrons
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Have a negative charge and a mass of 0.
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Electrons
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___ and ___ are found in the nucleus.
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Protons and Neutrons
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___ are found outside the nucleus.
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Electrons
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Atomic Number =
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# of Protons
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Atomic Mass =
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Protons plus neutrons
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______ have one electron for each proton.
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Electrically neutral atoms
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Atoms with the same # of protons but different # of neutrons
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Isotopes
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Basic kind of matter composed of the same kind of atoms; can't be broken down by ordinary chemical means.
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Element.
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Substances in which two or more elements are combined in fixed proportions
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Compounds
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Aggregate of atoms held together by covalent chemical bonds; functions as a unit.
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Molecule
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Electrons are attracted to protons but repelled by other elections.
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Law of Charges
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Area around the necleus of an atom in which electrons are likely to be at any instant
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Orbital
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