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  1. Periodic Table - Ptable

  2. Free Printable Periodic Tables (PDF and PNG)

  3. Periodic TableRoyal Society of Chemistry

  4. Interactive Periodic Table of Elements | Fisher Scientific

  5. Periodic Table of the Elements | NIST

  6. Interactive Periodic Table - ChemTalk

  7. Periodic Table - Periodic Table

  8. Printable Periodic Table PDF - Ptable

  9. Periodic Table App