The periodic table and it's trends

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Across
  1. 2. Element with atomic number 10.
  2. 3. Located in the 17th grqoup.
  3. 5. There are 18 of these.
  4. 7. They are located on the left side of the table.
  5. 10. First group on the table; _____ metals.
  6. 11. They are located on the staircase.
  7. 12. There are 7 of these.
  8. 14. They are located on the right of the table.
  9. 15. Bottom group of elements that are separated from the table.
Down
  1. 1. located in the 18th group.
  2. 4. Top group of elements that are separated from the table.
  3. 6. Where metalloids are located.
  4. 8. Element that has a mass of 32.07.
  5. 9. Second group on the table; Alkaline _____ metals.
  6. 13. The last Element on the periodic table.