Physical Science CH 6 Crossword

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Across
  1. 4. forces that hold atoms or ions together
  2. 5. valence electrons are delocalized a freely moving among all the bonded metal ions
  3. 7. unequal sharing (shorter bond length to one atom than to the other)
  4. 9. made of long chains of amino acids
  5. 14. long chain made of smaller molecules
  6. 17. biochemicals that provide energy
  7. 18. distance between nuclei (center) of two bonded atoms
  8. 19. a sharing of electrons, usually between nonmetals
Down
  1. 1. organic compound with hydroxyl groups (-OH)
  2. 2. only carbon and hydrogen
  3. 3. hydrocarbons with only single covalent bonds
  4. 6. hydrocarbons with at least one double covalent bond between carbon atoms
  5. 8. simplest formula OR tells the smallest whole number ratio of atoms in a compound
  6. 10. equal sharing
  7. 11. actual ratio of atoms, not the simple ratio
  8. 12. angle formed by two bonds to the same atom
  9. 13. a transfer of electrons between oppositely charged ions
  10. 15. groups of covalently bonded atoms that have a positive or negative charge as a group
  11. 16. must contain an amino group (-NH2), a carboxyl group (-COOH), and a side group with unique properties (-R)