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  1. Periodic Table - Ptable

  2. Periodic Table of Elements - PubChem

  3. Periodic table | Definition, Elements, Groups, Charges, Trends,

  4. Orbital Diagram of All Elements (Diagrams given Inside)

  5. Element Charges Chart – How to Know the Charge of an Atom

  6. Lewis Dot Diagrams of Selected Elements - HyperPhysics

  7. Atom Diagrams: Electron Configurations of the Elements

  8. Home | Periodic Table Guide

  9. Interactive Periodic Table of the Elements - Science Notes and Projects

  10. Elements: The Periodic Table