Ch 6&7

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Across
  1. 3. - a chemical bond in which two atoms share a pair of valence electrons
  2. 4. - a diagram of an atom, ion or molecule in which each dot represents a valence electron
  3. 6. - notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound
  4. 7. - the energy stored in chemical bonds
  5. 8. - a neutral group of atoms that are joined together by one or more covalent bonds
  6. 10. - an atom or group of atoms that has a positive or negative charge
  7. 11. - a substance that undergoes change in a chemical reaction
  8. 12. - the force that holds cations and anions together
Down
  1. 1. - a mixture of two or more elements, at least one of which is a metal, that has the characteristic properties of a metal
  2. 2. - a representation of a chemical reaction in which the reactants and products are expressed as formulas
  3. 3. - the force that holds atoms or ions together as a unit
  4. 5. - new substances formed as a result of a chemical reaction
  5. 9. - the attraction between a metal cation and the shared electrons that surround it