Periodic Table Crossword

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Across
  1. 3. Element that is liquid at STP and in Group 17
  2. 4. a specific type of metal found in Group 1; form +1 ions and very reactive
  3. 5. electrons in the outermost electron shell
  4. 6. elements that have luster, good conductors, malleable
  5. 8. two atoms of the same element chemically bonded together (HONClBrIF)
  6. 12. having 8 electrons in the outermost electron shell
  7. 13. elements that are dull, poor conductors, brittle
  8. 16. measure of the tendency of an atom to attract electrons to itself
  9. 19. element that is the only metalloid in Group 13
  10. 20. elements found in group 17 that form -1 ions and have 7 valence electrons
Down
  1. 1. elements that have properties of metals and nonmetals
  2. 2. a specific type of elements that do not occur in nature and they are radioactive
  3. 7. bendable; a property of metals
  4. 9. property of metals; able to be pulled into wires
  5. 10. element that is the only nonmetal in Group 14
  6. 11. vertical columns in a periodic table
  7. 14. element that is liquid at STP and in Group 12
  8. 15. horizontal rows in a periodic table
  9. 17. A specific type of metal found in Group 2; form +2 ions
  10. 18. a specific type of metal that is found in the middle of the periodic table; generally colored