Chapter 22

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Across
  1. 2. middle of the atoms; holds protons and neutrons
  2. 4. horizontal rows on the periodic table
  3. 7. how many electrons make the 3rd electron layer happy
  4. 11. any 2+ atoms bonded together
  5. 12. atoms with a different number of neutrons than protons
  6. 13. connection or attraction between atoms
  7. 14. how many electrons make the first electron layer happy
Down
  1. 1. all the same type of atom
  2. 3. bond where electrons are shared
  3. 5. bond where electrons are transferred/given
  4. 6. smallest piece of matter
  5. 8. columns on the periodic table
  6. 9. name for a molecule with charged ends
  7. 10. area around the nucleus where electrons are found
  8. 12. atoms with a positive or negative charge