Periodic Table Crossword

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Across
  1. 2. Element with the atomic number of 1.
  2. 4. The Periodic ____ has changed over time.
  3. 8. All of the elements grow less ______ as then go to the right.
  4. 13. The vertical columns on the Periodic Table.
  5. 14. Is the only metal that is liquid at room temperature.
  6. 15. On the periodic table staircase.
  7. 17. Right of the periodic table staircase.
  8. 18. When a metal and non-metals are bonded together.
  9. 19. When two nonmetals are bonded together.
  10. 20. The least reactive family is the _________.
Down
  1. 1. You can determine the number of ______ by counting the families.Except for the transition metals.
  2. 3. Elements are located in the ____ table.
  3. 5. Made out of Neutrons, Electrons and Protons.
  4. 6. There are 118 _____ on the periodic table.
  5. 7. The ____ Model is a model to represent an atom of an element.
  6. 9. You can determine the atomic ____ if you add the protons and neutrons of the element.
  7. 10. Each Element has a _____ number,mass, and symbol.
  8. 11. Left of the periodic table staircase.
  9. 12. Located in the nucleus with a positive charge.
  10. 16. Element but with a different number of neutrons.