Chemistry Unit 3

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Across
  1. 4. composed of metals and nonmetals
  2. 5. A group of atoms with a positive or negative charge
  3. 6. Held together by electrostatic forces
  4. 8. the lowest whole number ratios of ions in an ionic compound
  5. 9. The shared electrons are shared equally
  6. 12. bond Electronegativity greater than 1.8
  7. 13. neutral groups held together by covalent bonds
  8. 14. attractions between molecules
  9. 15. 4 bonds on the central atom
  10. 17. Attractions between polar molecules
  11. 18. stabalizing electron configurations
  12. 19. What prefix do you use if the first element has just one atom?
  13. 20. Weakest of all IMFs
Down
  1. 1. Composed of two elements
  2. 2. consist of a cation and anion
  3. 3. composed of two nonmetals
  4. 7. What does poly mean?
  5. 10. two atoms held together by one pair of electrons, is what type of bond?
  6. 11. diagrams that show valence electrons in an atom as dots
  7. 16. What is an unshared pair also called?