The Periodic Table

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Across
  1. 6. group of metals with 2 valence electrons
  2. 8. An electron that is in the highest occupied energy level of an atom
  3. 9. Elements with properties that fall between those of metals andnonmetals
  4. 11. Elements that are good conductors of heat and electric current
  5. 12. rows in the periodic table
  6. 13. An arrangement of elements in columns based on a set of propertiesthat repeat from row to row
Down
  1. 1. Elements that form a bridge between the elements on the left andright sides of the periodic table
  2. 2. columns in the periodic table
  3. 3. Colorless, odorless, and extremely unreactive gases
  4. 4. extremely reactive metals
  5. 5. Elements that are poor conductors of heat and electric current
  6. 7. A pattern of repeating properties that occurs when atomic numbersare used to arrange elements into groups
  7. 10. highly reactive nonmetals