Lesson 4-6 Quiz Review

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Across
  1. 4. The ingredient in gasoline that determines the grade of gasoline you buy at the gas station.
  2. 8. Unit of mass in the metric system.
  3. 9. The charge that the valence electrons "feel" due to the number of protons in the nucleus and the number of electrons in the inner shells of the atom.
  4. 10. A counting unit that tells you how many atoms or molecules you have in a given situation.
  5. 13. A type of chemical reaction in which energy is released to the environment.
Down
  1. 1. Prefix for 1000 in the metric system.
  2. 2. Term used to describe the size (or radius) of an atom.
  3. 3. A type of chemical reaction in which energy is absorbed from the environment.
  4. 5. Unit of energy in the metric system.
  5. 6. The type of electrons that are either shared or transferred in all chemical reactions.
  6. 7. The process in which inner electrons shield outer electrons from the positive charge of the atom's nucleus.
  7. 11. The gas/element that makes up rocket fuel.
  8. 12. The total energy (or heat H) of a system (or chemical reaction).