The Periodic Table and its Trends :O

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Across
  1. 6. Group 15, has an oxidation number of -3
  2. 7. The rows in the periodic table.
  3. 9. The columns in a periodic table.
  4. 10. Group 14, has an oxidation number of +/-4
  5. 15. How many electrons are in the outer shell, increases from left to right on the periodic table,
  6. 16. Typically located on the left of the periodic table.
Down
  1. 1. Groups 3-12
  2. 2. Located on the staircase in the periodic table.
  3. 3. Group 1, very reactive, and has an oxidation number of +1.
  4. 4. Typically located on the right of the periodic table.
  5. 5. The arrangement of chemical elements ordered by its atomic number.
  6. 8. Group 16, has an oxidation number of -2
  7. 11. Group 2, has an oxidation number of +2.
  8. 12. Increases as you go through the periodic table; the amount of protons an element has
  9. 13. Group 17, has an oxidation number of -1.
  10. 14. Group 18, Elements that are not reactive.