Periodic Table Crossword

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Across
  1. 2. both period two and three has this number of elements
  2. 7. alkali metals, alkaline earth metals, and this family all have the same amount of elements in each period
  3. 10. every element in the actinides family is ___
  4. 11. this family is all located in the second, third, and forth periods
  5. 12. this is the only element from the other metal family in the third period
  6. 13. this element is the only metalloid in the second period
  7. 14. noble gases all have a full outer ring of ___
  8. 16. the number of families in the periodic table
  9. 17. period one has ___ elements
  10. 18. the elements in period one are hydrogen and ___
Down
  1. 1. each period in the periodic table contains a different number of ___
  2. 3. this family has the most elements
  3. 4. this family has properties of metals and non-metals
  4. 5. all the elements in this family form acids when mixed with hydrogen
  5. 6. this family has an element in all seven periods
  6. 8. there are this many periods in the periodic table
  7. 9. this family is completely found in the 6th period
  8. 12. this family is completely found in the 7th period
  9. 15. noble gases are colorless and ___