Covalent and Ionic Compounds Crossword

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Across
  1. 3. a colorless and non-flammable gas
  2. 6. an inorganic compound with the formula NaF
  3. 8. a member of the halogens group on the periodic table
  4. 9. a colorless gas at normal temperatures and pressures.
  5. 10. the chemical formula F⁻
Down
  1. 1. commonly known as table salt
  2. 2. the simplest of all elements.
  3. 4. has five valence electrons
  4. 5. an inorganic chemical compound of nitrogen and hydrogen
  5. 7. a colorless volatile flammable liquid