Unit 4: The Periodic Table of Elements

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Across
  1. 2. a bond that contains 4 shared electrons
  2. 7. a compound made up of only nonmetals
  3. 9. _____ rule that states the atoms are the most stable with eight valence electrons
  4. 11. a bond that contains 6 shared electrons
  5. 12. part of a Lewis Structure that represents two shared electrons
  6. 13. the energy required to remove one electron from an atom
  7. 14. elements found in the lower detached row of the periodic table
  8. 15. a solution that a pH less than 7
  9. 18. an ion made up of multiple atoms
  10. 21. group 7
  11. 22. atomic ______ is how large an atom of a given element is
Down
  1. 1. ___ gases are found in group 8
  2. 3. a solution that a pH greater than 7
  3. 4. the attraction an atom has for a shared electron
  4. 5. elements found in the upper detached row of the periodic table
  5. 6. how likely a substance is to react with another substance
  6. 8. a negative ion
  7. 10. a compound made up of metals and nonmetals
  8. 11. metals found in the center chunk of the periodic table
  9. 16. an atom or group of atoms with a charge due to gaining or losing electrons
  10. 17. a positive ion
  11. 19. a ____ pair is a pair of electrons on an atom that are not part of a bond
  12. 20. metals found in group 1