Science unit 5

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Across
  1. 1. an electron that is in the highest occupied energy level of an atom
  2. 4. The elements in group 1A of the periodic table, not including hydrogen
  3. 6. elements that are poor conductors of heat and electric current
  4. 7. a column of elements in a periodic table
  5. 9. the elements in group 7A of the periodic table
  6. 10. a row in a periodic table of elements
  7. 12. metals that form a bridge between elements on the left and right sides of the periodic table
  8. 14. elements with properties that fall between those of metals and nonmetals
Down
  1. 2. one twelfth the mass of a carbon-12 atom
  2. 3. an arrangement of elements in columns, based on a set of properties that repeat from row to row
  3. 5. the elements in group 2A of the periodic table
  4. 8. elements that are good conductors of heat and electric current
  5. 11. the pattern of repeating properties displayed by elements in the periodic table
  6. 13. the elements in group 8A of the periodic table