Periodic Table Crossword

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Across
  1. 4. one of the few liquid elements at room temperature
  2. 5. elements that have gained or lost electrons
  3. 8. horizontal row on the periodic table
  4. 9. filling in the d orbitals
  5. 12. form anions and typically gain one electron
  6. 13. electrons involved in reactivity and bonding
  7. 14. filling in f orbitals
  8. 16. element in group 3A, period 2
  9. 17. elements that have a positive charge
  10. 18. has a complete octet, s and p orbitals are full
Down
  1. 1. have s2 for valence electrons
  2. 2. vertical column on the periodic table
  3. 3. elements that have a negative charge
  4. 4. good conductor of electricity and heat
  5. 6. noble gas with 18 protons
  6. 7. has properties of both metals and nonmetals
  7. 10. gases or dull looking solids, poor conductors
  8. 11. shiny, soft, highly reactive metals easily cut with a knife
  9. 15. transition metal with 5 electrons in the 3d orbitals