The Periodic Table and its Trends

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Across
  1. 2. Up and down on the periodic table
  2. 7. The first group periodic table
  3. 10. proton plus neutrons
  4. 12. The name of the element
  5. 15. Higher the more you go down
Down
  1. 1. In the middle of the periodic table
  2. 3. Left and Right of the periodic table
  3. 4. Neutral
  4. 5. The last group of the periodic table
  5. 6. On the outer shell
  6. 8. On the staircase
  7. 9. Right side of the periodic table
  8. 11. The top right of the element
  9. 13. The first element on the periodic table
  10. 14. Left side of the periodic table