Bonding Vocab

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Across
  1. 5. A description of a reaction using element symbols and chemical formulas.
  2. 6. Bond between a metal and a nonmetal, the attraction between positively and negatively charged ions in an ionic bond.
  3. 9. A substance that slows a chemical reaction.
  4. 11. Bond between metals.
  5. 13. A chemical reaction that absorbs thermal energy.
  6. 14. A substance created by a chemical reaction.
  7. 16. The minimum amount of energy needed to start (activate) a chemical reaction.
Down
  1. 1. The outermost electron of an atom that participates in chemical bonding.
  2. 2. Speeds up a reaction.
  3. 3. A number placed in front of an element symbol or chemical formula in an equation.
  4. 4. A chemical bond between metal/nonmetal formed when two atoms share one or more pairs of valence electrons.
  5. 7. A chemical reaction that releases thermal energy.
  6. 8. two or more atoms that are held together by covalent bonds and act as a unit.
  7. 10. An atom that is no longer neutral because it has lost or gained a valence electron.
  8. 12. A process in which atoms of one or more substances rearrange to form one or more new substances.
  9. 15. A starting substance in a chemical reaction.