Chapter 20.txt

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    • Chemical formula
    • Chemical shirthand that uses symbols to tell what elements are in a compound and their ratios
  1. Chemical bond
    Force that holds atoms together in a compound
  2. Ion
    Charged particle that has either more or fewer electrons than protons
  3. Ionic bond
    Attraction formed between oppositley charged ions in an ionic compound.
  4. Covalent bond
    Attraction formed between atoms when they share electrons
  5. Molecule
    A neutral particle that forms as a result of electron sharing
  6. Polar molecule
    Molecule with a slightly positive end and a slightly negative end as a result of electrons being shared unequally
  7. Nonpolar molecule
    Molecule that shares electrons equally and does not have oppositley charged ends
  8. Binary compound
    Compound that is composed of two elements.
  9. Oxidation number
    Positive or negative number that indicates how many electrons an atom has gained,lost, or shared to become stable
  10. Polyatomic ion
    Positivley or negatively charged, covalently bonded group of atoms
  11. Hydrate
    Compound that has water chemically attatched to its ions and written into its chemical formula
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Chapter 20.txt
2011-10-22 21:30:55
physical science vocab

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