Periodic Table Crossword

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Across
  1. 2. Only liquid metal
  2. 6. Symbol is Cs
  3. 9. Is radioactive
  4. 10. Is an alkaline earth metal
  5. 11. First alkali metal to have a higher density than water
  6. 13. Only liquid non-metal
  7. 14. Is located in the first period
  8. 15. Atomic weight is 7
Down
  1. 1. Is a solid
  2. 3. Atomic number is 20
  3. 4. Atomic weight is 88
  4. 5. Symbol is Na
  5. 7. Symbol is Mg
  6. 8. The first element on the table
  7. 12. Is radioactive