The Periodic Table and its Trends

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Across
  1. 1. number 20 on the periodic table
  2. 3. elements typically on the right side of the periodic table
  3. 5. The catorigazation of the first two groups on the periodic table
  4. 6. number 79 on the periodic table
  5. 9. rows on the periodic table
  6. 10. number 3 on the periodic table
  7. 11. first element on the periodic table
  8. 14. inventor of the periodic table of elements
  9. 15. columns on the periodic table
Down
  1. 2. elements typically on the left side of the periodic table
  2. 4. elements on or touching the staircase
  3. 7. graph used to find characteristics of elements
  4. 8. The catorigazation of group 17
  5. 12. the catorigazation name of the last group of elements
  6. 13. number 11 on the periodic table