Periodic Table

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Across
  1. 6. Ce, Nd, Sm, Gd and Ho are all part of this group
  2. 9. A vertical column on the Periodic Table
  3. 14. Calcium and Magnesium are in this group
  4. 16. Sodium and Potassium are in this group
  5. 18. This element has an atomic number of 54
  6. 19. A horizontal row on the Periodic Table
  7. 20. F, Cl, and I are in this group
  8. 21. Element number 77
  9. 22. Elements in this group are all non-reactive gases
Down
  1. 1. This element is in a group by itself
  2. 2. Antimony is in this group
  3. 3. Ac, Pa, Pu, Bk, and Es are all part of this group
  4. 4. Mendeleev put his table in order by _____ _____
  5. 5. This member of the Chalogen family has the smell of rotten eggs
  6. 7. Current Periodic Table is in order by _____ ____
  7. 8. B, Si, Ge, As, Sb, Te, At are all in this sub-group
  8. 10. This group contains elements that are used for jewelry and construction
  9. 11. Father of the Periodic Table
  10. 12. Silicon and Germanium are important semiconductors and are part of this group
  11. 13. This halogen is used in swimming pools
  12. 15. This element is a member of the Nitrogen group and is the red stuff on the end of a match
  13. 17. A member of the Boron group that is the 3rd most abundant element in the Earth's crust