Chemistry of Food

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Across
  1. 9. the basic units of matter which consist of protons, neutrons, and electrons
  2. 10. mixtures that have a nonuniform appearance and consist of visibly different substances
  3. 11. a shortened version of the name of a chemical element
  4. 12. form when atoms share one or more electrons
  5. 14. small, negatively charged particles located in atomic orbits
  6. 15. the columns of a periodic table
  7. 17. occurs when electrons are transferred from one atom to another
  8. 18. substances in which two or more elements chemically combine
Down
  1. 1. pure substances consisting of one type of atom
  2. 2. the approximate mass of an element
  3. 3. the electrons located in the outermost occupied orbit in an atom and can participate in chemical bonding
  4. 4. the rows of a periodic table
  5. 5. involves changing shape, size or temperature and/or physical state
  6. 6. involves change in color, odor, or flavor or releases a gas
  7. 7. large particles with no charge
  8. 8. mixtures that have the same uniform appearance throughout
  9. 13. the number of protons in an atom
  10. 16. large, positively charged particles