The Periodic Table

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Across
  1. 2. elements in the middle of the table.
  2. 5. when there are 8 electrons in the outer shell of an atom
  3. 6. column #2 on the periodic table
  4. 7. includes an elements atomic number, atomic weight, symbol, name, and electrons per shell
  5. 9. elements furthest to the left.
  6. 10. a gas that we breathe daily
  7. 12. creator of the periodic table
  8. 13. vertical columns on the Periodic table
Down
  1. 1. positive ion,
  2. 3. elements furthest to the right of the table
  3. 4. group that is a zig-zag on the periodic table
  4. 6. negative ion
  5. 8. most in need of a valence electron
  6. 11. horizontal row on the Periodic table.
  7. 12. arranged in order of increasing to decreasing on the periodic table