Chemistry Unit 3

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Across
  1. 4. when naming binary ionic compounds, write the name of the ___ first
  2. 7. compounds that have one or more hydrogen atoms and produce hydrogen ions when dissolved in water
  3. 10. valence-shell electron-pair repulsion
  4. 13. the energy required to break the bond between two covalently bonded atoms
  5. 15. formed when atoms gain one or more valence electrons
  6. 16. neutral groups of atoms held together by covalent bonds
  7. 17. molecules can be described as polar or...
  8. 18. a group of atoms with a positive or negative charge
Down
  1. 1. a binary compound is composed of...
  2. 2. the lowest whole number ratios of ions in an ionic compound
  3. 3. diagrams that show valence electrons in an atom as dots
  4. 4. formed when atoms lose one or more valence electrons
  5. 5. molecules containing two of the same element (hydrogen gas)
  6. 6. the strongest type of intermolecular force
  7. 8. the weakest type of intermolecular force
  8. 9. held together by electrostatic forces
  9. 11. the pre-fix for the number five in a binary molecular compound
  10. 12. ionic compounds have a net charge of...
  11. 13. ionic compounds that produce hydroxide ions when dissolved in water
  12. 14. the roman numeral for the number four