Periodic Table Vocabulary Crossword

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Across
  1. 2. group seventeen
  2. 5. ability to lose electrons
  3. 7. able to be flattened
  4. 10. the energy needed to remove an electron
  5. 11. outermost electrons
  6. 12. properties of both metals and nonmetals
  7. 14. group one
  8. 15. group eighteen
  9. 16. attraction of an atom to its electrons
  10. 18. able to be pulled in a wire
Down
  1. 1. group two
  2. 3. horizontal row
  3. 4. what forms when an atom loses electrons
  4. 6. changes with gaining or losing electrons
  5. 7. ordered the periodic table by atomic mass
  6. 8. dull, brittle
  7. 9. ordered the periodic table by atomic number
  8. 12. shiny and flexible
  9. 13. vertical column
  10. 14. what forms when an atom gains electrons
  11. 17. half the distance between identical atoms bonded together